S
Shiang Fang
Researcher at Harvard University
Publications - 87
Citations - 17106
Shiang Fang is an academic researcher from Harvard University. The author has contributed to research in topics: Bilayer graphene & Superlattice. The author has an hindex of 33, co-authored 77 publications receiving 10780 citations. Previous affiliations of Shiang Fang include National Chung Cheng University & Rutgers University.
Papers
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Journal ArticleDOI
Unconventional superconductivity in magic-angle graphene superlattices
Yuan Cao,Valla Fatemi,Shiang Fang,Kenji Watanabe,Takashi Taniguchi,Efthimios Kaxiras,Pablo Jarillo-Herrero +6 more
TL;DR: The realization of intrinsic unconventional superconductivity is reported—which cannot be explained by weak electron–phonon interactions—in a two-dimensional superlattice created by stacking two sheets of graphene that are twisted relative to each other by a small angle.
Journal ArticleDOI
Correlated insulator behaviour at half-filling in magic-angle graphene superlattices
Yuan Cao,Valla Fatemi,Ahmet Demir,Shiang Fang,Spencer Tomarken,Jason Luo,Javier Sanchez-Yamagishi,Kenji Watanabe,Takashi Taniguchi,Efthimios Kaxiras,Raymond Ashoori,Pablo Jarillo-Herrero +11 more
TL;DR: It is shown experimentally that when this angle is close to the ‘magic’ angle the electronic band structure near zero Fermi energy becomes flat, owing to strong interlayer coupling, and these flat bands exhibit insulating states at half-filling, which are not expected in the absence of correlations between electrons.
Journal Article
Correlated Insulator Behaviour at Half-Filling in Magic Angle Graphene Superlattices
Yuan Cao,Valla Fatemi,Ahmet Demir,Shiang Fang,Spencer Tomarken,Jason Luo,Javier Sanchez-Yamagishi,Kenji Watanabe,Takashi Taniguchi,Efthimios Kaxiras,Raymond Ashoori,Pablo Jarillo-Herrero +11 more
TL;DR: In this article, the effects of the twist angle between different layers in a van der Waals heterostructure have been investigated and it was shown that when this angle is close to the magic angle, the electronic band structure near zero Fermi energy becomes flat, owing to strong interlayer coupling.
Journal ArticleDOI
Atomic and electronic reconstruction at the van der Waals interface in twisted bilayer graphene
Hyobin Yoo,Rebecca Engelke,Stephen Carr,Shiang Fang,Kuan Zhang,Paul Cazeaux,Suk Hyun Sung,Robert Hovden,Adam W. Tsen,Takashi Taniguchi,Kenji Watanabe,Gyu-Chul Yi,Miyoung Kim,Mitchell Luskin,Ellad B. Tadmor,Efthimios Kaxiras,Philip Kim +16 more
TL;DR: An investigation of the structural and transport properties of bilayer graphene as a function of the twist angle between the layers reveals atomic-scale reconstruction for twist angles smaller than a critical value.
Journal ArticleDOI
Observation of the nonlinear Hall effect under time-reversal-symmetric conditions
Qiong Ma,Su-Yang Xu,Huitao Shen,David MacNeill,Valla Fatemi,Tay-Rong Chang,Andrés M. Mier Valdivia,Sanfeng Wu,Z. Z. Du,Z. Z. Du,Chuang-Han Hsu,Shiang Fang,Quinn Gibson,Kenji Watanabe,Takashi Taniguchi,Robert J. Cava,Efthimios Kaxiras,Hai-Zhou Lu,Hsin Lin,Liang Fu,Nuh Gedik,Pablo Jarillo-Herrero +21 more
TL;DR: The nonlinear Hall effect is observed in bilayer WTe2 in the absence of a magnetic field, providing a direct measure of the dipole moment of the Berry curvature, which arises from layer-polarized Dirac fermions in bilayers WTe 2 under time-reversal-symmetric conditions.