diff --git a/README.md b/README.md index 0651ae5cf7e..b55bbdc1601 100644 --- a/README.md +++ b/README.md @@ -1,10 +1,8 @@ -# Allan Lab Website +# Sun Lab Website -This is the website of our academic research group at Leiden University. +This is the website of our academic research group at PolyTechnic University of Hong Kong. -This website is powered by Jekyll and some Bootstrap, Bootwatch. We tried to make it simple yet adaptable, so that it is easy for you to use it as a template. Plese feel free to copy and modify for your own purposes. You don't have to link to us or mention us (but of course we appreciate it). - -Go to *aboutwebsite.md* to learn how to copy and modidy this page for your purpose. +Test for Xin's Lab Copyright Allan Lab. Code released under the MIT License. diff --git a/_config.yml b/_config.yml index bf739b1df5a..9c94c9e27d2 100644 --- a/_config.yml +++ b/_config.yml @@ -6,12 +6,12 @@ # 'jekyll serve'. If you change this file, please restart the server process. # Site settings -title: The Allan Lab +title: The Sun Lab PolyU HK email: your-email@domain.com description: > # this means to ignore newlines until "baseurl:" - Website of the AllanLab. -baseurl: "" -url: "" + Website of the Sun Lab. +url: "https://achang3398.github.io" +baseurl: "/sunlabpolyuhk.io" include: - .htaccess diff --git a/_data/news.yml b/_data/news.yml index 704bfe52c84..f52eb36b476 100644 --- a/_data/news.yml +++ b/_data/news.yml @@ -1,234 +1,12 @@ -- date: 1. October 2025 - headline: Welcome Yuval, Devidas, and Fabian! +- date: 1. November 2025 + headline: Welcome Audrey! -- date: 15. July 2025 - headline: Welcome Apollon and Stefan! +- date: 3. August 2025 + headline: Welcome Xin — our lab is officially starting! -- date: 3. March 2025 - headline: Welcome Premakumar! +- date: 2. January 2025 + headline: Congratulations on Xin publishing another paper! Our paper is in [Springer Nature](https://link.springer.com/article/10.1007/s11218-024-09955-7) -- date: 12. February 2025 - headline: Our Amorphous Shiba State - paper is on the cover! ![Image](shiba_cover.jpg) - -- date: 16. January 2025 - headline: Our paper on self-supervised learning is in [PRB](https://journals.aps.org/prb/abstract/10.1103/PhysRevB.111.035136) - -- date: 3. March 2025 - headline: Our new BSCCO noise paper is on [arXiv](https://arxiv.org/abs/2409.15928) - -- date: 1. November 2024 - headline: Welcome Jaroslav & Louw! - -- date: 1. April 2024 - headline: Welcome Sanghun! - -- date: 22. February 2024 - headline: Our shot noise paper is an [Editors' Suggestion in PRL](https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.132.076001)! ![image](/images/newspic/ShotnoiseEditor.png){:class="img-responsive"} - -- date: 15. September 2023 - headline: Welcome Thomas! - -- date: 1. November 2023 - headline: All the best with your new position in Dresden Jacky! - -- date: 1. September 2023 - headline: Welcome Yudai! - -- date: 22. June 2023 - headline: Our Majorana-Noise paper is out! And Michelle wrote a [nice item](https://www.universiteitleiden.nl/en/news/2023/06/new-method-to-find-majoranas-tested-for-the-first-time) about it. - -- date: 28. May 2023 - headline: The [SuperC website](https://superc2033.com) is live! We are excited to be part of this journey. - -- date: 22. June 2023 - headline: Jiasen's paper on noise in mesoscopic junctions is [on arXiv](https://arxiv.org/abs/2306.02397). - -- date: 6. March 2023 - headline: How does superconductivity break down with high doping? Our new [paper in Nature Materials](https://www.nature.com/articles/s41563-023-01497-1) shines some light on the issue. - -- date: 18. December 2022 - headline: Willem defends his PhD. Contratulations! - -- date: 23. May 2022 - headline: "Two new papers on arXiv! One on [persistent gaps and non-mean-field breakdown of SC](https://arxiv.org/abs/2205.09740), and one on [shot-noise of individual (putative) Majorana modes](https://arxiv.org/abs/2205.10346)." - -- date: 17. March 2022 - headline: "Milan wins an ERC CoG grant! See [Leiden news](https://www.universiteitleiden.nl/en/news/2022/03/understanding-superconductivity-comes-closer-with-major-erc-grant-for-milan-allan). " - -- date: 29. October 2021 - headline: "**Our new paper, on Cooper pairs above Tc, is published in [Science](https://www.science.org/doi/10.1126/science.abe3987)**. - See [SRON news](https://www.sron.nl/news/5169-elektronparen-blijven-stabiel-boven-kritische-temperatuur-supergeleiding), [TU Delft news](https://www.tudelft.nl/en/2021/eemcs/inexplicably-stable-electron-pairs-without-superconductivity), [Leiden news](https://www.universiteitleiden.nl/en/news/2021/10/new-quantum-liquid-discovered), [Physics World](https://physicsworld.com/a/cooper-pairs-spotted-above-critical-temperature-for-superconductivity/)." - -- date: 1. October 2021 - headline: Maialen will join us within a collaboration with the Swart Lab -- welcome Maialen! - -- date: 15. September 2021 - headline: Amber will join us with Casimir-Nanofront PhD fellowship -- welcome Amber! - -- date: 28. June 2021 - headline: Welcome Jinwon! - -- date: 16. March 2021 - headline: "Koen wrote about his research in EurophysicsNews (page 12)." - -- date: 16. February 2021 - headline: "Our new paper on twisted bilayer graphene from our Leiden-ICFO collaboration in PRR." - -- date: 22. January 2021 - headline: "Koen wins the Ehrenfest-Afanassjewa prize for best physics thesis of the Netherlands!" - -- date: 21. January 2021 - headline: "New paper on arXiv, on Cooper pairs above Tc" - -- date: 16. January 2021 - headline: "Our YSR paper is out, in collaboration with Copenhagen." - -- date: 08. December 2020 - headline: "Our new paper is out, in collaboration with the groups of Baumberger, Perry and Mackenzie." - -- date: 02. November 2020 - headline: "Maarten's paper is published in Microsyst Nanoeng." - -- date: 15. October 2020 - headline: "Welcome Jiasen!" - -- date: 29. September 2020 - headline: "TGB paper (led by ICFO and Geneva) is in Nature Physics! See also coverage by Dorine Schenk in NRC" - -- date: 14. September 2020 - headline: "Maarten's paper is published in PRB." - -- date: 18. March 2020 - headline: "LION made a nice video about Koen and his research." - -- date: 8. January 2020 - headline: "Irene wins discoverer of the year by the faculty of Science! (Press release)!" - -- date: 10. December 2019 - headline: "Koen defends his PhD with a cum laude (top 5%)!" - -- date: 5. September 2019 - headline: "The noise doubling paper is published in Phys. Rev. B!" - -- date: 25. August 2019 - headline: "Doohee got an assistant professor job at Yonsei University!" - -- date: 25. July 2019 - headline: "The inhomogeneous superfluid paper is published in Nature!" - -- date: 15. July 2019 - headline: "We imaged the doubling of shot noise due to Andreev reflections in a STM, posted on arXiv." - -- date: 24. May 2019 - headline: "The smart tip paper is finally published ! A collaboration with the Gröblacher Lab at TU Delft." - -- date: 08. May 2019 - headline: "Irene defends her PhD!" - -- date: 08. May 2019 - headline: "Dome makes it on the University website. " - -- date: 13. December 2018 - headline: "Our paper about how to construct an STM is in Review of Scientific Instruments. " - -- date: 08. October 2018 - headline: "We discovered charge trapping in a high-Tc superconductor! Publication in Nature Physics. " - -- date: 27. September 2018 - headline: "Our MHz amplifier for STM is published in Review of Scientific Instruments. " - -- date: 16. May 2018 - headline: "Milan, Koen and Irene talk about superconductivity in Made in Leiden." - -- date: 4. May 2018 - headline: "Welcome Ram!" - -- date: 5.-9. March 2018 - headline: "Irene and Milan are at the March Meeting (Talk Tue 10am, session E45)" - -- date: 13. November 2017 - headline: " New paper published in collaboration with the group of Jan van Ruitenbeek" - -- date: 10. November 2017 - headline: "Doohee makes the third place at the LION Image Award. " - -- date: 9. October 2017 - headline: "We contributed to Miguel and Jan's new paper. " - -- date: 12. August 2017 - headline: "We got an ERC starting grant." - -- date: 10. August 2017 - headline: "Our paper is published in SciPost Physics." - -- date: 17. - 21. July 2017 - headline: "Milan wins the Bryan R. Coles prize at SCES 2017, Prague. Koen received the best poster presentation award. " - -- date: 17. - 21. July 2017 - headline: "Koen, Maarten and Milan will be at SCES 2017, Prague. Come check out our posters on Tuesday&Thursday and talk on Thursday!" - -- date: 18. June 2017 - headline: "Paper on poor electronic screening published in PRB as Editors' selection! " - -- date: 15. May 2017 - headline: Welcome Doohee! - -- date: 13. - 17. March 2017 - headline: Koen & Irene give talks at the APS March Meeting in New Orleans. - -- date: 27. January - 3. March 2017 - headline: "We are looking forward to co-hosting the workshop on unconventional superconductivity at the Lorentz center. " - -- date: 17-18. January 2017 - headline: Irene, Koen, Maarten and Milan will be at Physics@Veldhoven 2017. (Talk at PT6.1 and poster at P9.022). - -- date: 25. November 2016 - headline: "We are part of a newly granted Vrije Programma on strange metals, together with the groups of Hussey, Golden, vHeumen, Zaanen, Schalm, Stoof and Vandoren, see press release. We also got a Projectruimte." - -- date: 19. September 2016 - headline: " Our first paper from Leiden is online at Nature Physics! " - -- date: 12. September 2016 - headline: Koen is at Correl16, Julich. - -- date: 01. July 2016 - headline: Milan is at the strongly correlated electron GRC 2016. - -- date: 24. June 2016 - headline: Felix Baumberger is visiting. - -- date: 17. June 2016 - headline: Irene is at SNS2016. - -- date: 28. April 2016 - headline: Our results on the Mott & pseudo gap physics posted on arXiv ! - -- date: 14. May 2016 - headline: Ivan Bozovic is visiting. - -- date: 17. March 2016 - headline: Koen, Irene & Vitaly present a poster at Sun Sailing Science. - -- date: 17. Jan 2016 - headline: "We discover electronic order and pseudogap in a non-cuprate materal! " - -- date: 01. Jan 2016 - headline: Welcome Vitaly! - -- date: 17. June 2015 - headline: Welcome Kees! - -- date: 17. June 2015 - headline: "Maarten wins the LION image award! Check out his submission." - -- date: 17. June 2015 - headline: " We win a Vidi grant: 800kEUR to invest in science! (Leiden news, FOM news item) " - -- date: 01. Sept 2015 - headline: "Welcome Koen and Maarten: from Master- to PhD-students" - -- date: 17. June 2015 +- date: 1. February 2025 headline: "We got our commercial STM from Unisoku, and we are already busy modifying." -- date: 01. Jan 2015 - headline: Welcome Irene, Gijsbert & Milan — our lab is officially starting! diff --git a/_data/publist.yml b/_data/publist.yml index 8defe8a7918..a5a9711ea22 100644 --- a/_data/publist.yml +++ b/_data/publist.yml @@ -1,410 +1,17 @@ -- title: "Cryogenic geometric anti-spring vibration isolation system" - image: GAS.png - description: TLow temperature and low vibration levels are key for scanning probe microscopy, large-mass quantum mechanics, and gravitational wave detection. Here we develop and present a new cryogenic GAS system to achieve such environments. - authors: L. Feenstra, S. Dominguez-Calderon, K. van Oosten, H. S. M. Bohemen, T. Benschop, M. Brinkman, M. Li, E. Hennes, R. Cornelissen, B. J. Hensen, A. Bertolini, M. P. Allan +- title: "Growth mindset in Chinese culture: A meta-analysis" + image: GAS.png + description: The current meta-analysis aimed to characterize intelligence mindset beliefs among Chinese individuals by mapping out their level of growth mindset endorsement and its relationship with psycho-educational outcomes. + authors: Wang, Y., & Sun, X. link: - url: https://arxiv.org/abs/2509.09010 - display: arXiv (2025) + url: https://link.springer.com/article/10.1007/s11218-024-09955-7 + display: Springer (2025) highlight: 1 -- title: "Tapping-mode SQUID-on-tip Microscopy with Proximity Josephson Junctions" - image: SQUIDGAME.png - description: We measure measure non-equilibrium properties such as current and dissipation, and their relation to structure, which a novel SQUID-AFM. Collaboration with the [Lahabi Lab](https://www.lahabilab.com), led by Matthijs Rog. - authors: Matthijs Rog, Tycho J. Blom, Daan B. Boltje, Jimi D. de Haan, Remko Fermin, Jiasen Niu, Yasmin C. Doedes, Milan P. Allan, Kaveh Lahabi +- title: "Neural processing of children’s theory of mind in a naturalistic story-listening paradigm" + image: GAS.png + description: Neuroimaging of Theory of mind (ToM) in young children often faces challenges in ecological validity and quality data collection. We developed and implemented an innovative naturalistic story-listening paradigm, which is child-friendly, engaging, and ecologically valid, to shed light on ToM neural mechanisms in childhood. + authors: Yu, C. L., Eggleston, R. L., Zhang, K., Nickerson, N., Sun, X., Marks, R. A., Hu, X., Brennan, J. R., Wellman, H. M., & Kovelman, I. link: - url: https://arxiv.org/pdf/2508.21575 - display: arxiv (2025) - highlight: 1 - -- title: "Signatures of Amorphous Shiba State in FeTe0.55Se0.45" - image: shiba_cover.jpg - description: Can superconducting coherence peaks form impurity-like ring patterns? And how can such features appear across the entire surface? We suggest an an amorphous Shiba state located outside the superconducting gap – a Shiba liquid. - authors: Jinwon Lee* & Sanghun Lee*, Andreas Kreisel, Jens Paaske, Brian M. Andersen, Koen M. Bastiaans, Damianos Chatzopoulosm Genda GuDoohee Cho, Milan P. Allan - link: - url: https://pubs.acs.org/doi/full/10.1021/acs.nanolett.4c05650 - display: Nano Lett. 25, 4227 (2025) - highlight: 1 - -- title: "Equivalence of pseudogap and pairing energy in a cuprate high-temperature superconductor" - image: BSCCO_noise.png - description: What is the pseudogap and what is the relation between pseudogap and superconductivity? – This is likely the most discussed issue in quantum matter over the last three decades. We report a direct evidence for equivalence of pseudogap and onset energy for electron pairing with our state-of-art electron pair microscope. This may inspire hope for materials with higher Tc. - authors: Jiasen Niu, Maialen Ortego Larrazabal, Thomas Gozlinski, Yudai Sato, Koen M. Bastiaans, Tjerk Benschop, Jian-Feng Ge, Yaroslav M. Blanter, Genda Gu, Ingmar Swart, Milan P. Allan - link: - url: https://arxiv.org/abs/2409.15928 - display: arXiv - highlight: 1 - -- title: "Why shot noise does not generally detect pairing in mesoscopic superconducting tunnel junctions" - image: ShotNoise.png - description: Can mesoscopic shot noise experiments show the doubling of the charge carriers in a superconductor? Turns out, it's complicated. We investigated this in several different samples, and made predictions as to what is necessary to make this work. - authors: Jiasen Niu, Koen M. Bastiaans, Jianfeng Ge, Ruchi Tomar, John Jesudasan, Pratap Raychaudhuri, Max Karrer, Reinhold Kleiner, Dieter Koelle, Arnaud Barbier, Eduard F.C. Driessen, Yaroslav M. Blanter, Milan P. Allan - link: - url: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.132.076001 - display: Phys. Rev. Lett. 132, 076001 (Editors' Suggestion) - highlight: 1 - -- title: "Single-electron charge transfer into putative Majorana and trivial modes in individual vortices" - image: imageaward_edited.png - description: Shot noise has been suggested for a long time as a tell-tale probe for Majorana bound states. We are the first to carry out local tunneling shot noise measurements on the putative vortex Majorana states. - authors: J-F Ge, KM Bastiaans, D Chatzopoulos, D Cho, WO Tromp, T Benschop, J Niu, G Gu, MP Allan - link: - url: https://www.nature.com/articles/s41467-023-39109-w - display: Nature Communications 4, 3341 (2023) - highlight: 1 - news2: See [news item](https://www.universiteitleiden.nl/en/news/2023/06/new-method-to-find-majoranas-tested-for-the-first-time) by Michelle Willebrands - -- title: "Puddle formation, persistent gaps, and non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)2Sr2CuO6+δ" - image: BSCCOgap.png - description: Why does cuprate superconductivity break down at a certain doping level? Using scanning tunneling spectroscopy we find that an emerging metallic matrix inside the superconducting state is responsible for the overall reduction of Tc and the superfluid density, while leaving the gapsize unchanged. The formation of the matrix is tied to a pair breaking process violating a core principle of mean-field theories. - authors: WO Tromp, T Benschop, J-F Ge, I Battisti, KM Bastiaans, D Chatzopoulos, A Vervloet, S Smit, E van Heumen, MS Golden, Y Huang, T Kondo, Y Yin, JE Hoffman, MA Sulangi, J Zaanen, MP Allan - link: - url: https://www.nature.com/articles/s41563-023-01497-1 - display: Nature Materials 22, 703 (2023) - highlight: 1 - news1: See [News and Views](https://www.nature.com/articles/s41563-023-01552-x) by Yu He. - - -- title: "Direct evidence for Cooper pairing without a spectral gap in a disordered superconductor above Tc" - image: Pairs3.png - description: We use our atomic-scale scanning tunneling noise setup on a disordered superconductor, and discover a state above TC that, much like an ordinary metal, has no (pseudo)gap, but carries charge via paired electrons. - authors: KM Bastiaans, D Chatzopoulos, J-F Ge, D Cho, WO Tromp, JM van Ruitenbeek, MH Fischer, PJ de Visser, DJ Thoen, EFC Driessen, TM Klapwijk, MP Allan - link: - url: https://www.science.org/doi/10.1126/science.abe3987 - display: Science 374, 608 (2021) - highlight: 1 - news1: Featured as 'Research Highlight' in Nature Physics by David Abergel - news2: See [Physics World](https://physicsworld.com/a/cooper-pairs-spotted-above-critical-temperature-for-superconductivity/), [SRON news](https://www.sron.nl/news/5169-elektronparen-blijven-stabiel-boven-kritische-temperatuur-supergeleiding), [TU Delft news](https://www.tudelft.nl/en/2021/eemcs/inexplicably-stable-electron-pairs-without-superconductivity), [Leiden news](https://www.universiteitleiden.nl/en/news/2021/10/new-quantum-liquid-discovered). - -- title: "Imaging moiré deformation and dynamics in twisted bilayer graphene" - image: TBG_SL.png - description: Why is there so much variation in TBG devices? And are open devices more disordered than encapsulated ones? We introduce a new method to continuously map inhomogeneities of a moiré lattice and apply it to open-device TBG to show that twist angle variation is small over areas of hundreds of nm. - authors: TA de Jong, T Benschop, X Chen, EE Krasovskii, MJA de Dood, RM Tromp, MP Allan, SJ van der Molen - link: - url: https://www.nature.com/articles/s41467-021-27646-1 - display: Nat Comm 13, 70 (2022) - highlight: 0 - news2: - -- title: "Measuring local moiré lattice heterogeneity of twisted bilayer graphene" - image: TBG_SL.png - description: Why is there so much variation in TBG devices? And are open devices more disordered than encapsulated ones? We introduce a new method to continuously map inhomogeneities of a moiré lattice and apply it to open-device TBG to show that twist angle variation is small over areas of hundreds of nm. - authors: T Benschop *, TA de Jong*, P Stepanov*, Xiaobo Lu, V Stalman, SJ van der Molen, DK Efetov, MP Allan - link: - url: https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.3.013153 - display: Phys. Rev. Research 3, 013153 (2021) - highlight: 1 - news2: See also [Nat Comm with the group of van der Molen](https://arxiv.org/abs/2107.14716) - -- title: "Spatially dispersing Yu-Shiba-Rusinov states in the unconventional superconductor FeTe0.55Se0.45" - image: YSR.png - description: We report on a peculiar, spatially dispersing YSR state in Fe(Se,Te) that can be tuned by the tip. - authors: D Chatzopoulos, Doohee Cho, KM Bastiaans, GO Steffensen, D Bouwmeester, A Akbari, Genda Gu, J Paaske, BM Andersen, MP Allan - link: - url: https://www.nature.com/articles/s41467-020-20529-x - display: Nature Communications 12, 298 (2021) - highlight: 1 - -- title: "Multi-Atom Quasiparticle Scattering Interference for Superconductor Energy-Gap Symmetry Determination" - image: TBG_ARPES.png - description: - authors: R Sharma, A Kreisel, MA Sulangi, J Böker, A Kostin, MP Allan, H Eisaki, AE Böhmer, PC Canfield, I Eremin, JC Davis, PJ Hirschfeld, PO Sprau - link: - url: https://dx.doi.org/10.1038/s41535-020-00303-4 - display: npj Quantum Materials 6, 7 (2021) - highlight: 0 - news2: - - -- title: "Observation of flat bands in twisted bilayer graphene" - image: TBG_ARPES.png - description: A first paper from the TBG collaboration is online, with beautiful data from the Baumberger group in Geneva, and great devices from the Efetov group at ICFO. We measured STM on the device. - authors: S Lisi*, X Lu*, T Benschop*, TA de Jong*, Petr S, JR Duran, F Margot, I Cucchi, E Cappelli, A Hunter, A Tamai, V Kandyba, A Giampietri, A Barinov, J Jobst, V Stalman, M Leeuwenhoek, K Watanabe, T Taniguchi, L Rademaker, SJ van der Molen, MP Allan, DK Efetov, F Baumberger - link: - url: https://www.nature.com/articles/s41567-020-01041-x - display: Nature Physics 17, 198 (2020) - highlight: 1 - news2: News coverage by NRC - -- title: "Direct comparison of ARPES, STM, and quantum oscillation data for band structure determination in Sr2RhO4" - image: Direct.png - authors: I Battisti, WO Tromp, S Riccò, RS Perry, AP Mackenzie, A Tamai, F Baumberger, MP Allan - description: We directly test the consistency of results from these three techniques by comparing data from the correlated metal Sr2RhO4. Using ARPES, STM, and quantum oscillations, we find good agreement for the Fermi surface topography and carrier effective masses. Hence, the apparent absence of such an agreement in other quantum materials, including the cuprates, suggests that the electronic states in these materials are of different, non-Fermi liquid-like nature. Collaboration with the groups of Baumberger, Perry, and Mackenzie. - link: - url: https://www.nature.com/articles/s41535-020-00292-4 - display: npj Quantum Materials 5, 91 (2020) - highlight: 1 - news2: - -- title: "Fabrication of on-chip probes for double-tip scanning tunneling microscopy" - image: TBG_ARPES.png - authors: M Leeuwenhoek, F Groenewoud, K van Oosten, T Benschop, MP Allan, S Gröblacher - description: - link: - url: https://www.nature.com/articles/s41378-020-00209-y - display: Microsyst. Nanoeng. 6, 99 (2020) - highlight: 0 - news2: - -- title: "Modeling Green's functions measurements with two-tip scanning tunneling microscopy" - image: TBG_ARPES.png - description: A first paper from the TBG collaboration is online, with beautiful data from the Baumberger group in Geneva, and great devices from the Efetov group at ICFO. We measured STM on the device. - authors: M Leeuwenhoek, S Gröblacher, MP Allan, YaM Blanter - link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.115416 - display: PRB 102, 115416 (2020) - highlight: 0 - news2: - -- title: "A strongly inhomogeneous superfluid in an iron-based superconductor" - image: STS_news.png - description: We succeeded in measuring the superfluid density with atomic resolution on an unconventional superconductor! In contrast to expectations for conventional superconductors, we find that the superfluid densisty is strongly inhomogeneous in FeTe0.55Se0.45. - authors: D Cho* & KM Bastiaans* & D Chatzopoulos*, GD Gu, MP Allan - link: - url: https://www.nature.com/articles/s41586-019-1408-8 - display: Nature 571, 541 (2019) - highlight: 1 - news2: - -- title: "Nanofabricated tips as a platform for double-tip and device based scanning tunneling microscopy" - image: SmartPub.png - description: We introduce a platform for bringing new, device-based functionality to STM, with the goal of utilizing decades of progress in device engineering for the field of scanning probe. - authors: M Leeuwenhoek, RA Norte, KM Bastiaans, Doohee Cho, I Battisti, YaM Blanter, S Gröblacher, MP Allan - link: - url: https://iopscience.iop.org/article/10.1088/1361-6528/ab1c7f/pdf - display: Nanotechnology 30, 335702 (2019) - highlight: 1 - news2: See also our papers on the theoretical modeling of such measurements, and the paper about fabrication. - -- title: "Imaging doubled shot noise in a Josephson scanning tunneling microscope" - image: PbSpub.png - description: We have imaged the doubling of the current noise due to Andreev reflections in a Josephson scanning tunneling microscope. - authors: KM Bastiaans, D Cho, D Chatzopoulos, M Leeuwenhoek, C Koks, MP Allan - link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.104506 - display: Phys. Rev. B 100, 104506 (2019) - highlight: 1 - news2: - -- title: "Definition of design guidelines, construction and performance of an ultra-stable scanning tunneling microscope for spectroscopic imaging" - image: DomePub.png - description: Our first completely home-built STM is alive! And it has the world’s highest resonance frequency. - authors: I Battisti, G Verdoes, K van Oosten, KM Bastiaans, and MP Allan - link: - url: https://aip.scitation.org/doi/10.1063/1.5064442 - display: Rev. Sci. Instrum. 89, 123705 (2018) - highlight: 1 - news2: - -- title: "Charge trapping and super-Poissonian noise centres in a cuprate superconductor" - image: Pub_BCl.png - description: Using our newly developed noise-spectroscopy technique we discover charge trapping in a cuprate high-temperature superconductor. - authors: KM Bastiaans* & D Cho*, T Benschop, I Battisti, Y Huang, MS Golden, Q Dong, Y Jin, J Zaanen, MP Allan - link: - url: https://www.nature.com/articles/s41567-018-0300-z - display: Nature Physics 14, 1183 (2018) - highlight: 1 - news1: Instrument details in Rev. Sci. Instrum. 89, 093709 (2018) - news2: See also quantum universe (in dutch), Phys.org , Leiden University news, UvA news. - -- title: "Amplifier for scanning tunneling microscopy at MHz frequencies" - image: Fano.png - description: We develop, build and test a novel amplifier circuit capable of measuring the tunneling current in the MHz regime while simultaneously performing conventional STM measurements. We are looking forward to performing scanning noise spectroscopy on quantum materials! - authors: KM Bastiaans, T Benschop, D Chatzopoulos, D Cho, Q Dong, Y Jin, MP Allan - link: - url: https://aip.scitation.org/doi/10.1063/1.5043267 - display: Rev. Sci. Instrum. 89, 093709 (2018) - highlight: 0 - news2: - -- title: "Revisiting quasiparticle scattering interference in high-temperature superconductors: the problem of narrow peaks" - image: dummy.png - description: "" - authors: MA Sulangi, MP Allan, J Zaanen - link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.96.134507 - display: PRB 96, 134507 (2017) - highlight: 0 - news2: Coverd in Superconductor Week, November 30, 2017 Vol. 31, No. 10 - -- title: Robust procedure for creating and characterizing the atomic structure of scanning tunneling microscope tips - image: dummy.png - description: "" - authors: S Tewari, KM Bastiaans, MP Allan, JM van Ruitenbeek - link: - url: http://www.beilstein-journals.org/bjnano/content/pdf/2190-4286-8-238.pdf - display: Beilstein J. Nanotechnol. 8, 2389 (2017) - highlight: 0 - news2: - -- title: Creating better superconductors by periodic nanopatterning - image: SCAUweb.jpg - description: - We propose an approach to transform a ‘pristine’ material into a better (meta-) superconductor by making use of modern fabrication techniques -- designing and engineering the electronic properties of thin films via periodic patterning on the nanoscale. - authors: - MP Allan, MH Fischer, O Ostojic, A Andringa - link: - url: https://scipost.org/SciPostPhys.3.2.010/pdf - display: SciPost Phys. 3, 010 (2017) - highlight: 1 - -- title: Poor electronic screening in lightly doped Mott insulators observed with scanning tunneling microscopy - image: TIBB.png - description: - We develop a simple model to interpret STM results on lightly doped Mott insulators, and find that the effective Mott gap measured by STM correspons to the one measured with other techniques when taking into account the poor electronic screeing. - authors: - I Battisti, V Fedoseev, KM Bastiaans, A de la Torre, RS Perry, F Baumberger, MP Allan - link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.235141 - display: Phys. Rev. B 95, 235141, Editors' suggestion (2017) - highlight: 0 - -- title: Universality of pseudo gap and emergent order in lightly doped Mott insulators - image: Mott_phase_sep.jpg - description: - We discover of electronic order, pseudo gap phase separation and an impurity-band Mott transition in an iridate compound, cuprate-style. Along the way, we gained unique knowledge on how a Mott state collapses. - authors: - I. Battisti* & K.M. Bastiaans*, V. Fedoseev, A. de la Torre, N. Iliopoulos, A. Tamai, E.C. Hunter, R.S. Perry, J. Zaanen, F. Baumberger, M.P. Allan - link: - url: http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys3894.html - display: Nature Physics 13, 21 (2017) - highlight: 1 - news2: See also Leiden University news by Erik Arends, Phys.org - -- title: Identifying the fingerprint of antiferromagnetic spin fluctuations in iron pnictide superconductors - image: Pub_FP.png - description: - Both the density of states and the QPI dispersion of LiFeAs shows signatures of electron-boson coupling. Comparing these with fingerprints of different boson couplings to conclude that these signatures stem from AF spin fluctuations. - authors: - MP Allan* & Kyungmin Lee* & AW Rost*, MH Fischer, F Massee, K Kihou, C-H Lee, A Iyo, H Eisaki, T-M Chuang, AP Mackenzie, JC Davis, DJ Scalapino, E-A Kim - link: - url: http://www.nature.com/nphys/journal/v11/n2/full/nphys3187.html - display: Nature Physics 11, 177 (2015) - highlight: 1 - news1: - news2: See also Cornell Chronicle by Anne Ju, Phys.org - -- title: Direct evidence for a magnetic f-electron mediated Cooper pairing mechanism of heavy fermion superconductivity in CeCoIn5 - image: dummy.png - description: "" - authors: - J Van Dyke, F Massee, MP Allan, JC Davis, C Petrovic, and DK Morr - link: - url: http://www.pnas.org/content/111/32/11663 - display: PNAS 111, 11663 (2014) - highlight: 0 - news1: News item in Science - news2: - -- title: Imaging Cooper pairing of heavy fermions in CeCoIn5 - image: Pub_CeCoIn5.png - description: - The heavy Fermion superconductor CeCoIn5 has a d-wave gap with nodes along the (1,1) direction, as we find using QPI. - authors: - MP Allan* & F Massee*, DK Morr, J van Dyke, AW Rost, AP Mackenzie, C Petrovic, JC Davis - link: - url: http://www.nature.com/nphys/journal/vaop/ncurrent/abs/nphys2671.html - display: Nature Physics 9, 468 (2013) - highlight: 1 - news1: Featured in 'News and Views' by L Taillefer - news2: See also Phys.org, DoE headliner - -- title: Formation of heavy d-electron quasiparticles in Sr3Ru2O7 - image: Pub_327.png - description: - Using APRES, we find that the bands in Sr3Ru2O7 look more like in heavy fermion material than in a normal metal. We present a detailed investigation into the formation of this particular electronic structure. - authors: - MP Allan, A Tamai, E Rozbicki, MH Fischer, J Voss, PDC King, W Meevasana, S Thirupathaiah, E Rienks, J Fink, A Tennant, RS Perry, JF Mercure, MA Wang, J Lee, CJ Fennie, E-A Kim, MJ Lawler, KM Shen, AP Mackenzie, Z-X Shen, F Baumberger - link: - url: http://iopscience.iop.org/1367-2630/15/6/063029 - display: New Journal of Physics 15, 063029 (2013) - highlight: 1 - news: Video abstract available - -- title: Anisotropic impurity states, quasiparticle scattering and nematic transport in underdoped Ca(Fe1−xCox)2As2 - image: Pub_nemat2b.png - description: - We elucidate on the formation of the electronic nematic state in Co-CaFe2As2, finding that the Cobalt dopant atoms play a key role. - authors: - MP Allan, T-M Chuang, F Massee, Y Xie, N Ni, SL Bud’ko, GS Boebinger, Q Wang, DS Dessau, PC Canfield, MS Golden, JC Davis - highlight: 1 - link: - url: http://www.nature.com/nphys/journal/v9/n4/full/nphys2544.html - display: Nature Physics 9, 220 (2013) - news2: See also Tech Connect by Jennifer Rocha, Phys.org by Bill Steele - -- title: Anisotropic energy gaps of iron-based superconductivity from intraband quasiparticle interference in LiFeAs - image: Pub_LiFeAs.png - description: - In contrast to earlier photoemission reports, we show that the gaps in iron based superconductors are not isotropic but modulated with angle. - authors: - MP Allan⋆ & AW Rost⋆, AP Mackenzie, Y Xie, JC Davis, K Kihou, CH Lee, A Iyo, H Eisaki, T-M Chuang - link: - url: http://www.sciencemag.org/content/336/6081/563 - display: Science 336, 563 (2012) - highlight: 1 - news2: See also Cornell Cornincle by Bill Steele, Eureka Alert - -- title: How Kondo-holes create intense nanoscale heavy-fermion hybridization disorder - image: dummy.png - description: "" - authors: MH Hamidian, AR Schmidt, IA Firmo, MP Allan, P Bradley, JD Garrett, TJ Williams, GM Luke, Y Dubi, AV Balatsky, JC Davis - link: - url: http://www.pnas.org/content/108/45/18233 - display: PNAS 108, 18233 (2011) - highlight: 0 - news2: - -- title: Nematic electronic structure in the “parent” state of the iron-based superconductor Ca(Fe1−xCox)2As2 - image: Pub_nemat1.png - description: - We discovered an electronic nematic in the iron based superconductor Co-CaFe2As2! This state is by now confirmed and quite well characterized by transport, photoemission, and more SI-STM experiments. - authors: - T-M Chuang* & MP Allan*, J Lee, Y Xie, N Ni, SL Bud’ko, GS Boebinger PC Canfield, JC Davis - link: - url: http://www.sciencemag.org/content/327/5962/181 - display: Science 327, 181 (2010) - highlight: 1 - news1: Featured in a ‘Perspective’ by E Fradkin & SA Kivelson - news2: See also Article on NewScientist by Colin Barras - -- title: Heavy d-electron quasiparticle interference and real-space electronic structure of Sr3Ru2O7 - image: Pub_hBN.png - description: - QPI in Sr327. - authors: Jinho Lee* & M. P. Allan*, M. A.Wang, J. Farrell, S. A. Grigera, F. Baumberger, J. C. Davis and A. P. Mackenzie - link: - url: https://www.nature.com/nphys/journal/v5/n11/full/nphys1397.html - display: Nature Physics 5, 800 (2009) - highlight: 0 - -- title: Fermi surface and van Hove singularities in the itinerant metamagnet Sr3Ru2O7 - image: Pub_hBN.png - description: - We determine the Fermi surface of Sr327. - authors: - A Tamai, MP Allan, JF Mercure, W Meevasana, R Dunkel, DH Lu, RS Perry, AP Mackenzie, David J Singh, Z-X Shen, F Baumberger - link: - url: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.101.026407 - display: Phys. Rev. Lett. 101, 026407 (2008) - highlight: 0 - -- title: Tunable self-assembly of one-dimensional nanostructures with orthogonal directions - image: Pub_hBN.png - description: - Hexagonal boron nitride shows fancy superstructures on the Mo(111) surface. - authors: - MP Allan, S Berner, M Corso, T Greber, J Osterwalder - link: - url: https://link.springer.com/article/10.1007/s11671-006-9036-2 - display: Nanoscale Research Letters 2, 94 (2007) - highlight: 1 - -- title: Photoelectron Diffraction for a Look inside Nanostructures - image: dummy.png - description: "" - authors: - J Osterwalder, A Tamai, W Auwärter; MP Allan, T Greber - link: - url: hhttp://www.ingentaconnect.com/content/scs/chimia/2006/00000060/00000011/art00013 - display: CHIMIA 11, 759 (2006) - highlight: 0 + url: https://academic.oup.com/scan/article/20/1/nsaf022/8045374 + display: Oxford Academic (2025) + highlight: 2 diff --git a/_data/team_members.yml b/_data/team_members.yml index c899dc559d8..1c0629af12f 100644 --- a/_data/team_members.yml +++ b/_data/team_members.yml @@ -1,21 +1,18 @@ -- name: Milan P Allan - photo: Milan1.jpg - info: Professor - email: milan.allan@gmail.com - number_educ: 5 - education1: Master ETHZ, Diplomarbeit with J Osterwalder, University of Zurich - education2: PhD St Andrews (while at Cornell University) with Felix Baumberger and JC Davis - education3: Postdoc Cornell - education4: ETH fellow at ETHZ with Andreas Wallraff - education5: Bryan R. Coles Prize 2017 - -- name: Jiasen Niu - photo: Jiasen.png - info: Leader Leiden Branch, started Oct 2020 - email: niu@physics.leidenuniv.nl - number_educ: 2 - education1: PhD with Xi Lin and Jian Wei, Peking University - education2: BSc Jilin University +- name: Xin Sun + photo: Xin_profile.jpeg + info: Professor/Principle Investigator + email: xinsun@polyu.edu.hk + number_educ: 3 + education1: Psychology, BS, Beijing Normal University Sept 2012 → Jun 2016 + education2: Education and Psychology, PhD, University of Michigan, Ann Arbor Sept 2016 → Aug 2022 + education3: Psychology, Banting Postdoctoral Fellow, University of British Columbia Sept 2022 → Aug 2025 + +- name: Audrey Chang + photo: Audrey.jpeg + info: Lab Manager & Research Assistant + email: achang3398@gmail.com + number_educ: 1 + education1: BSc UBC Neuroscience - name: Yudai Sato photo: Sato.jpeg @@ -25,114 +22,3 @@ education1: PhD with [Yukio Hasegawa](https://www.issp.u-tokyo.ac.jp/maincontents/organization/labs/hasegawa_group_en.html) at the University of Tokyo education2: Master, University of Tokyo -- name: Thomas Gozlinski - photo: Thomas.jpg - info: Akademischer Rat, since November 2023 - email: benschop@physics.leidenuniv.nl - number_educ: 2 - education1: PhD, KIT, with [Wulf Wulfhekel](https://www.int.kit.edu/1941_701.php) - education2: MSc KIT - -- name: Premakumar Yanda - photo: Yanda.png - info: Postdoc, since March 2025 - email: benschop@physics.leidenuniv.nl - number_educ: 2 - education1: PhD, JNCASR, with A. Sundaresan - education2: MSc, Andhra University - -- name: Stefan Rudel - photo: Stefan.png - info: Postdoc, shared with [Kloß lab](https://kloss.cup.uni-muenchen.de/dr-simon-kloss/) - email: benschop@physics.leidenuniv.nl - number_educ: 3 - education1: Postdoc LMU Munich with [Wolfgang Schnick](https://www.cup.uni-muenchen.de/ac/schnick/prof-dr-w-schnick/) - education2: PhD TUM and University of Marburg with [Florian Kraus](https://www.uni-marburg.de/de/fb15/arbeitsgruppen/anorganische_chemie/ag-kraus) - education3: MSc TUM - -- name: Devidas TR - photo: Devidas.png - info: Postdoc - email: benschop@physics.leidenuniv.nl - number_educ: 2 - education1: Postdoc Bar-Ilan with [Beena Kalisky](https://beenalab.biu.ac.il) - education2: PhD Homi Bhabha National Institute - education3: MSc National Institute of Technology - Tiruchirappalli - -- name: Yuval Nitzav - photo: Yuval.png - info: Postdoc - email: benschop@physics.leidenuniv.nl - number_educ: 2 - education1: PhD Technion with [Amit Kanigel](https://phsites.technion.ac.il/arpes/) - education2: MSc Technion - -- name: Amber Mozes - photo: Amber.png - info: PhD Student, started September 2021 - email: b - number_educ: 2 - education1: Master Applied Physics, TU Delft - education2: Casimir/Nanofront PhD fellowship - education3: - education4: - -- name: Maialen Ortego Larrazabal - photo: Maialen.png - info: PhD Student within a collaboration with the Swart Lab - email: b - number_educ: 2 - education1: Master Leiden University - education2: BSc, University of the Basque Country - education3: - education4: - -- name: Sanghun Lee 이상헌 - photo: Sanghun.jpg - info: PhD Student - email: b - number_educ: 2 - education1: Master Yonsei with [Doohee Cho](http://physicsyonsei.kr/en/people/professor?idx=48) - education2: BSc, Yonsei University - education3: - education4: - -- name: Louw Feenstra - photo: Louw.jpeg - info: PhD Student, started November 2024 - email: b - number_educ: 2 - education1: BSc, Leiden University - education2: MSc, LMU Munich, with [Christian Pfleiderer](https://www.professoren.tum.de/en/pfleiderer-christian) - education3: - education4: - -- name: Ilse Kuijf - photo: ilse.jpeg - info: Shared PhD student in the [van Nieuwenburg group](https://evert.info) - email: Bastiaans@Physics.LeidenUniv.nl - number_educ: 1 - education1: Master Leiden University - -- name: Marios-Apollon Marangos - photo: apollon.png - info: Engineer - email: Bastiaans@Physics.LeidenUniv.nl - number_educ: 1 - education1: Master Physics TUM, with Kiutra - -- name: Anna Tymofieieva - photo: anna.png - info: Admin - email: Bastiaans@Physics.LeidenUniv.nl - number_educ: 1 - education1: Nationale Pädagogische H.-S.-Skoworoda-Universität, Charkiw - -- name: "This could be you !" - photo: rock.jpg - info: See openings for more info - email: milan.allan@gmail.com - number_educ: 0 - education1: - education2: - education3: diff --git a/_includes/footer.html b/_includes/footer.html index 4a5d853611a..eeccb888227 100644 --- a/_includes/footer.html +++ b/_includes/footer.html @@ -13,13 +13,13 @@
-

We are part of the Faculty of Physics at the University of Munich (LMU). We are still associated with the Leiden Institute of Physics, where most of our instrument are.

+

We are part of the Department of Language Science & Technology at the Hong Kong PolyTechnic University. We are still associated with the University of British Columbia, where our initial data was collected.

Contact:
-Geschwister-Scholl-Platz 1
- 80539 München
- Germany
+Audrey Chang
+ achang3398@gmail.com
+ Hong KOng
diff --git a/_includes/head.html b/_includes/head.html index d3f90622425..d66cd19491d 100644 --- a/_includes/head.html +++ b/_includes/head.html @@ -1,3 +1,4 @@ + + + + + + {% if page.title %}{{ page.title | escape }}{% else %}{{ site.title | escape }}{% endif %} + + + + + + + +{% if jekyll.environment == 'production' %} +{% include analytics.html %} +{% endif %} + + diff --git a/_includes/header.html b/_includes/header.html index 066c3f830b1..d1eccc0e949 100644 --- a/_includes/header.html +++ b/_includes/header.html @@ -8,7 +8,7 @@ - Allan Lab @ Leiden → University of Munich (LMU) + Sun Lab; Hong Kong PolyTechnic University (PolyU)