The quantum spin Hall effect and topological insulators
Xiao-Liang Qi,Shou-Cheng Zhang +1 more
TLDR
In topological insulators, spin-orbit coupling and time-reversal symmetry combine to form a novel state of matter predicted to have exotic physical properties as mentioned in this paper, which is called spin−orbit coupling.Abstract:
In topological insulators, spin–orbit coupling and time-reversal symmetry combine to form a novel state of matter predicted to have exotic physical properties.read more
Citations
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Negative differential resistance and characteristic nonlinear electromagnetic response of a Topological Insulator
TL;DR: It is shown that negative differential resistance also generically arise in Dirac ring systems, an example of which has been experimentally observed in the surface states of Topological Insulators.
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Absence of Intrinsic Spin Splitting in One-Dimensional Quantum Wires of Tetrahedral Semiconductors
TL;DR: In this article, it was shown that 1D quantum wires made of conventional zinc-blende semiconductors have unexpected zero spin splitting for all electron and hole bands if the wire is oriented along (001) (belonging to ${D}_{2d}$ symmetry).
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Topological Properties of Atomic Lead Film with Honeycomb Structure
TL;DR: It is shown that the 2D Pb structure can be encapsulated by SiO2 with very small lattice mismatch and still maintains its topological character, and these features make the2D atomic Pb films a promising platform for fabricating novel topological electronic devices.
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Giant tunneling magnetoresistance in silicene
TL;DR: In this article, the authors theoretically studied ballistic electron transport in silicene under the manipulation of a pair of ferromagnetic gate and demonstrated that due to the stray field-induced wavevector filtering effect, remarkable difference in configuration-dependent transport gives rise to a giant tunneling magnetoresistance.
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Artificial intelligence for high-throughput discovery of topological insulators: The example of alloyed tetradymites
Guohua Cao,Guohua Cao,Guohua Cao,Runhai Ouyang,Luca M. Ghiringhelli,Matthias Scheffler,Huijun Liu,Christian Carbogno,Zhenyu Zhang +8 more
TL;DR: In this paper, an artificial intelligence (AI)-based approach was used for fast and reliable identification of the topological characters of a drastically expanded range of materials, without prior determination of their specific symmetries and detailed band structures.
References
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Quantum spin Hall effect in graphene
Charles L. Kane,Eugene J. Mele +1 more
TL;DR: Graphene is converted from an ideal two-dimensional semimetallic state to a quantum spin Hall insulator and the spin and charge conductances in these edge states are calculated and the effects of temperature, chemical potential, Rashba coupling, disorder, and symmetry breaking fields are discussed.
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New Method for High-Accuracy Determination of the Fine-Structure Constant Based on Quantized Hall Resistance
TL;DR: In this article, the Hall voltage of a two-dimensional electron gas, realized with a silicon metal-oxide-semiconductor field effect transistor, was measured and it was shown that the Hall resistance at particular, experimentally well-defined surface carrier concentrations has fixed values which depend only on the fine-structure constant and speed of light, and is insensitive to the geometry of the device.
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Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
TL;DR: In this article, the quantum spin Hall (QSH) effect can be realized in mercury-cadmium telluride semiconductor quantum wells, a state of matter with topological properties distinct from those of conventional insulators.
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Z-2 Topological Order and the Quantum Spin Hall Effect
Charles L. Kane,Eugene J. Mele +1 more
TL;DR: The Z2 order of the QSH phase is established in the two band model of graphene and a generalization of the formalism applicable to multiband and interacting systems is proposed.
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Non-Abelian Anyons and Topological Quantum Computation
TL;DR: In this article, the authors describe the mathematical underpinnings of topological quantum computation and the physics of the subject are addressed, using the ''ensuremath{
u}=5∕2$ fractional quantum Hall state as the archetype of a non-Abelian topological state enabling fault-tolerant quantum computation.