DMREF PUBLICATIONS
Seed work:
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C.-C. Liu, J.-J. Zhou, Y. Yao, and F. Zhang, Weak topological insulators and composite Weyl semimetals: β-Bi₄X₄ (X=Br, I), Phys. Rev. Lett. 116, 066801 (2016).
DMREF team works:
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W. Liu, N. Dale, C. Yoon, J. S. Oh, Z. Zhang, S. Li, J. Wang, H. Wu, G. C. Ortiz, J. Hwang, R. J. Birgeneau, C. N. Lau, M. Yi, F. Zhang, and B. Lv, New structural and topological phases in the phase diagram of Bi₄I₄₋ₓBrₓ (0 ≤ x ≤ 4), to be submitted (2023).
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J. S. Oh, T. Xu, N. Dhale, S. Li, C. Lei, J. Huang, H. Wu, M. Hashimoto, D. Lu, C. Jozwiak, A. Bostwick, E. Rotenberg, C. N. Lau, B. Lv, F. Zhang, R. Birgeneau, and M. Yi, Ideal weak topological insulator and protected helical saddle points, preprint arXiv:2301.12626 (2023).
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Y. Liu, R. Chen, Z. Zhang, M. Bockrath, C. N. Lau, Y.-F. Zhou, C. Yoon, S. Li, X. Liu, N. Dhale, B. Lv, F. Zhang, K. Watanabe, T. Taniguchi, J. Huang, M. Yi, J. S. Oh, and R. J. Birgeneau, Gate-tunable transport in quasi-one-dimensional α-Bi4I4 field effect transistors, Nano Lett. 22, 1151 (2022).
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J. Huang, S. Li, C. Yoon, J. S. Oh, H. Wu, X. Liu, N. Dhale, Y.-F. Zhou, Y. Guo, Y. Zhang, M. Hashimoto, D. Lu, J. Denlinger, X. Wang, C. N. Lau, R. J. Birgeneau, F. Zhang, B. Lv, and M. Yi, Room-temperature topological phase transition in quasi-one-dimensional material Bi₄I₄, Phys. Rev. X 11, 031042 (2021).
External collaboration:
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N. Shumiya, M. S. Hossain, J.-X. Yin, Z. Wang, M. Litskevich, C. Yoon, Y. Li, Y. Yang, Y.-X. Jiang, G. Cheng, Y.-C. Lin, Q. Zhang,
Z.-J. Cheng, T. A. Cochran, D. Multer, X. P. Yang, B. Casas, T.-R. Chang, T. Neupert, Z. Yuan, S. Jia, H. Lin, N. Yao, L. Balicas, F. Zhang, Y. Yao, and M. Z. Hasan, Evidence of a room-temperature quantum spin Hall edge state in a higher-order topological insulator, Nat. Mater. 21, 1111 (2022), [ highlighted as the cover story. ]
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C. Yoon, C.-C. Liu, H. Min, and F. Zhang, Quasi-one-dimensional higher-order topological insulators, preprint arXiv:2005.14710. (2020).
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S. Talkington, P. Cheung, and F. Zhang, Infrared optical properties of quasi-one-dimensional topological insulators,
to be submitted (2023). [ Video link to this work: https://www.youtube.com/watch?v=1ocucYUpC3w ]
Materials enrichment:
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X. Teng, J. S. Oh, H. Tan, L. Chen, J. Huang, B. Gao, J.-X. Yin, J.-H. Chu, M. Hashimoto, D. Lu, C. Jozwiak, A. Bostwick, E. Rotenberg, G. E. Granroth, B. Yan, R. J. Birgeneau, P. Dai, and M. Yi, Intertwined magnetism and charge density wave order in kagome FeGe, Nat. Phys. (2023). https://doi.org/10.1038/s41567-023-01985-w
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X. Chen, Y.-T. Shao, R. Chen, S. Susarla, T. Hogan, Y. He, H. Zhang, S. Wang, J. Yao, P. Ercius, D. A. Muller, R. Ramesh, and R. J. Birgeneau, Pervasive beyond room-temperature ferromagnetism in a doped van der Waals magnet, Phys. Rev. Lett. 128, 217203 (2022).
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H. Wu, A. M. Hallas, X. Cai, J. Huang, J. S. Oh, V. Loganathan, A. Weiland, G. T. McCandless, J. Y. Chan, S.-K. Mo, D. Lu, M. Hashimoto, J. Denlinger, R. J. Birgeneau, A. H. Nevidomskyy, G. Li, E. Morosan, and M. Yi, Nonsymmorphic symmetry-protected band crossings in a square-net metal PtPb₄, npj Quantum Mater. 7, 31 (2022).
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W. Liu, X. Guo, J. Schwartz, H. Xie, N. U. Dhale, S. H. Sung, A. L. N. Kondusamy, X. Wang, H. Zhao, D. Berman, R. Hovden, L. Zhao, and B. Lv, A three-stage magnetic phase transition revealed in ultrahigh-quality van der Waals bulk magnet CrSBr, ACS Nano 16, 15917 (2022).
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X. Chen, E. Schierle, Y. He, M. Vranas, J. W. Freeland, J. L. McChesney, R. Ramesh, R. J. Birgeneau, and A. Frano, Antiferromagnetic order in Co-doped Fe₅GeTe₂ probed by resonant magnetic x-ray scattering, Phys. Rev. Mater. 6, 094404 (2022).
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H. Wu, S. Li, X. Wang, S. Kwon, W. Liu, G. A. Ofenstein, M. J. Kim, and B. Lv, New layered quaternary BaCu₆Sn₂As₄₋ₓ and BaCu₆Sn₂P₄₋ₓ phases: Crystal growth and physical properties, J. Alloys Compd. 892, 162111 (2022).
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S. Li, Y. Zhang, H. Wu, H. Zhai, W. Liu, D. P. Petit, J. S. Oh, J. Denlinger, G. T. McCandless, J. Y. Chan, R. J. Birgeneau, G. Li, M. Yi, and B. Lv, Transport anomalies in the layered compound BaPt₄Se₆, npj Quantum Mater. 6, 80 (2021).
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W. Liu, M. R. Osanloo, X. Wang, S. Li, N. Dhale, H. Wu, M. L. Van de Put, S. Tiwari, W. G. Vandenberghe, and B. Lv, New Verbeekite-type polymorphic phase and rich phase diagram in the PdSe₂₋ₓTeₓ system, Phys. Rev. B 104, 024507 (2021).
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X. Liu, K. M. Taddei, S. Li, W. Liu, N. Dhale, R. Kadado, D. Berman, C. D. Cruz, and B. Lv, Canted antiferromagnetism in the quasi-one-dimensional iron chalcogenide BaFe₂Se₄, Phys. Rev. B 102, 180403 (2020).
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H. Wu, H. Zhai, S. Li, M. Sorolla, II, G. T. McCandless, D. P. Petit, J. Y. Chan, and B. Lv, Crystal structure and electronic properties of new compound Zr6.5Pt6Se19, Inorg. Chem. 59, 8196 (2020).
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H. Wu, S. Li, Z. Wu, X. Wang, G. A. Ofenstein, S. Kwon, M. J. Kim, P. C. W. Chu, and B. Lv, Novel polymorphic phase of BaCu₂As₂: impact of flux for new phase formation in crystal growth, Cryst. Growth Des. 20, 5922 (2020).
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S. Li, X. Liu, M. Sorolla, II, G. T. McCandless, H. Wu, H. Zhai, J. Y. Chan, and B. Lv, Synthesis and structure of a nonstoichiometric Zr3.55Pt4Sb4 compound, Inorg. Chem. 58, 12017 (2019).
Quantum devices and applications:
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S. Yuan, C. Ma, E. Fetaya, T. Mueller, D. Naveh, F. Zhang, and F. Xia., Geometric deep optical sensing, Science 379, 1103 & eade1220 (2023).
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H. Tian, X. Gao, Y. Zhang, S. Che, T. Xu, P. Cheung, K. Watanabe, T. Taniguchi, M. Randeria, F. Zhang, C. N. Lau, and M. W. Bockrath, Evidence for Dirac flat band superconductivity enabled by quantum geometry, Nature 614, 440 (2023).
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A. M. Seiler, F. R. Geisenhof, F. Winterer, K. Watanabe, T. Taniguchi, T. Xu, F. Zhang, and R. T. Weitz, Quantum cascade of correlated phases in trigonally warped bilayer graphene, Nature 608, 298 (2022).
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C. Ma, S. Yuan, P. Cheung, K. Watanabe, T. Taniguchi, F. Zhang, and F. Xia, Intelligent infrared sensing enabled by tunable moiré quantum geometry, Nature 604, 266 (2022).
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C. N. Lau, M. W. Bockrath, K. F. Mak, and F. Zhang, Reproducibility in the fabrication and physics of moiré materials, Nature 602, 41 (2022).
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M. Fortin-Deschênes, R. Pu, Y.-F. Zhou, C. Ma, P. Cheung, K. Watanabe, T. Taniguchi, F. Zhang, X. Du, and F. Xia, Uncovering topological edge states in twisted bilayer graphene, Nano Lett. 22, 6186 (2022).
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F. R. Geisenhof, F. Winterer, A. M. Seiler, J. Lenz, T. Xu, F. Zhang, and R. T. Weitz, Quantum anomalous Hall octet driven by orbital magnetism in bilayer graphene, Nature 598, 53 (2021).
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B. Deng, C. Ma, Q. Wang, S. Yuan, K. Watanabe, T. Taniguchi, F. Zhang, and F. Xia, Strong mid-infrared photoresponse in small-twist-angle bilayer graphene, Nat. Photon. 14, 549 (2020).
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C. Ma, Q. Wang, S. Mills, X. Chen, B. Deng, S. Yuan, C. Li, K. Watanabe, T. Taniguchi, X. Du, F. Zhang, and F. Xia, Moiré band topology in twisted bilayer graphene, Nano Lett. 20, 6076 (2020).
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L. Ju, L. Wang, X. Li, S. Moon, M. Ozerov, Z. Lu, T. Taniguchi, K. Watanabe, E. Mueller, F. Zhang, D. Smirnov, F. Rana, and P. L. McEuen, Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene,
Nat. Commun. 11, 2941 (2020).
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W. Yu, R. Haenel, M. A. Rodriguez, S. R. Lee, F. Zhang, M. Franz, D. I. Pikulin, and W. Pan, Zero-bias conductance peak in Dirac semimetal-superconductor devices, Phys. Rev. Res. 2, 032002 (2020).