Y
Yew San Hor
Researcher at Missouri University of Science and Technology
Publications - 117
Citations - 19600
Yew San Hor is an academic researcher from Missouri University of Science and Technology. The author has contributed to research in topics: Topological insulator & Superconductivity. The author has an hindex of 40, co-authored 112 publications receiving 17482 citations. Previous affiliations of Yew San Hor include Argonne National Laboratory & Princeton University.
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Observation of a large-gap topological-insulator class with a single Dirac cone on the surface
Yuqi Xia,Dong Qian,Dong Qian,David Hsieh,Lewis Wray,Arijeet Pal,Hsin Lin,Arun Bansil,D. Grauer,Yew San Hor,Robert J. Cava,M. Z. Hasan +11 more
TL;DR: In this paper, an angle-resolved photo-emission spectroscopy study was conducted to reveal the first observation of a topological state of matter featuring a single surface Dirac cone realized in the naturally occurring Bi-2Se-3 class of materials.
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A topological Dirac insulator in a quantum spin Hall phase
TL;DR: In this article, the authors used incident-photon-energy-modulated angle-resolved photoemission spectroscopy (IPEM-ARPES) to locate the Kramers points at the sample's boundary and provide a comprehensive mapping of the Dirac insulator's gapless surface electron bands.
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A tunable topological insulator in the spin helical Dirac transport regime
David Hsieh,Yuqi Xia,Dong Qian,Lewis Wray,Jan Hugo Dil,Jan Hugo Dil,Fabian Meier,Fabian Meier,Jürg Osterwalder,Luc Patthey,Joseph Checkelsky,Nai Phuan Ong,Alexei V. Fedorov,Hsin Lin,Arun Bansil,D. Grauer,Yew San Hor,Robert J. Cava,M. Z. Hasan +18 more
TL;DR: The results reveal a spin-momentum locked Dirac cone carrying a non-trivial Berry’s phase that is nearly 100 per cent spin-polarized, which exhibits a tunable topological fermion density in the vicinity of the Kramers point and can be driven to the long-sought topological spin transport regime.
Journal ArticleDOI
Observation of Unconventional Quantum Spin Textures in Topological Insulators
David Hsieh,Yuqi Xia,Lewis Wray,Lewis Wray,Dong Qian,Arijeet Pal,Jan Hugo Dil,Jan Hugo Dil,Jürg Osterwalder,Fabian Meier,Fabian Meier,Gustav Bihlmayer,Charles L. Kane,Yew San Hor,Robert J. Cava,M. Z. Hasan +15 more
TL;DR: Using Mott polarimetry, it is demonstrated that topological quantum numbers are completely determined from spin texture–imaging measurements and the origin of its topological order and unusual chiral properties are identified.