Y
Yang Xu
Researcher at Cornell University
Publications - 39
Citations - 3136
Yang Xu is an academic researcher from Cornell University. The author has contributed to research in topics: Topological insulator & Superlattice. The author has an hindex of 17, co-authored 31 publications receiving 1879 citations. Previous affiliations of Yang Xu include Chinese Academy of Sciences & Purdue University.
Papers
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Journal ArticleDOI
Simulation of Hubbard model physics in WSe 2/WS 2 moiré superlattices
Yanhao Tang,Lizhong Li,Tingxin Li,Yang Xu,Song Liu,Katayun Barmak,Kenji Watanabe,Takashi Taniguchi,Allan H. MacDonald,Jie Shan,Kin Fai Mak +10 more
TL;DR: A new solid-state platform based on moiré superlattices that can be used to simulate problems in strong-correlation physics that are described by triangular-lattice Hubbard models is established.
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Observation of topological surface state quantum Hall effect in an intrinsic three-dimensional topological insulator
Yang Xu,Ireneusz Miotkowski,Chang Liu,Jifa Tian,Hyoungdo Nam,Nasser Alidoust,Jiuning Hu,Chih-Kang Shih,M. Zahid Hasan,Yong P. Chen +9 more
TL;DR: In this paper, the predicted half-integer quantum Hall effect was observed using the topological insulator BiSbTeSe2, which exhibits topological surface states at room temperature, with each surface contributing a half quantum of Hall conductance.
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Pressure-controlled interlayer magnetism in atomically thin CrI3.
Tingxin Li,Shengwei Jiang,Nikhil Sivadas,Zefang Wang,Yang Xu,Daniel Weber,Joshua E. Goldberger,Kenji Watanabe,Takashi Taniguchi,Craig J. Fennie,Kin Fai Mak,Jie Shan +11 more
TL;DR: In this paper, pressure-induced changes in the magnetic order of atomically thin van der Waals crystals are revealed and attributed to changes in stacking arrangement, and the interlayer ferromagnetic ground state is established in bulk CrI3 but not observed in native exfoliated thin films.
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Correlated insulating states at fractional fillings of moiré superlattices.
Yang Xu,Song Liu,Daniel Rhodes,Kenji Watanabe,Takashi Taniguchi,James Hone,Veit Elser,Kin Fai Mak,Jie Shan +8 more
TL;DR: This study lays the groundwork for using moiré superlattices to simulate a wealth of quantum many-body problems that are described by the two-dimensional extended Hubbard model3,13,14 or spin models with long-range charge-charge and exchange interactions15,16.
Journal Article
Observation of topological surface state quantum Hall effect in an intrinsic three-dimensional topological insulator
TL;DR: In this article, the predicted half-integer quantum Hall effect was observed using the topological insulator BiSbTeSe2, which exhibits topological surface states at room temperature, with each surface contributing a half quantum of Hall conductance.