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Open AccessJournal ArticleDOI

The quantum spin Hall effect and topological insulators

Xiao-Liang Qi, +1 more
- 01 Jan 2010 - 
- Vol. 63, Iss: 1, pp 33-38
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.

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Citations
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Journal ArticleDOI

Origin of the isostructural electronic states of the topological insulator Bi 2 Te 3

TL;DR: In this paper, the authors carried out a combined investigation of single-crystal x-ray diffraction, high-quality xray absorption fine structure, and first-principles theoretical calculations to decipher the puzzling origin of the intriguing electronic states in the isostructural $R\text{\ensuremath{-}}3m$ phase of three-dimensional topological insulator.
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Transparent conducting materials: Flexibility with a metallic skin.

TL;DR: A class of conductors that are transparent in the near-infrared region has now been developed using a topological insulator.
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Intrinsic ferromagnetism in iron doped magnetically topological insulator Fe0.015BiSbTe3

TL;DR: In this article, the ferromagnetic ordering in Fe 0.015 BiSbTe 3 was observed by magnetization and magneto-transport measurements, and it was shown that the magnetic easy axis is out of plane.
Journal ArticleDOI

Hall conductance for open two-band system beyond rotating-wave approximation

TL;DR: This paper systematically study the Hall conductance of a two-band model under the influence of its environment by treating the system and its environment on equal footing and suggests a way to the controlling of the whole system response, which has potential applications for condensed matter physics and quantum statistical mechanics.
Journal ArticleDOI

A toy model for quantum spin Hall effect

TL;DR: In this article, a toy model of three-dimensional topological insulator surface, coupled homogeneously to a fictitious pseudospin-1 2 particle, was investigated and shown to capture the interesting features of topological surface states, which include topological quantum phase transition and quantum spin Hall effect.
References
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Journal ArticleDOI

Quantum spin Hall effect in graphene

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.
Journal ArticleDOI

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.
Journal ArticleDOI

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.
Journal ArticleDOI

Z-2 Topological Order and the Quantum Spin Hall Effect

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.
Journal ArticleDOI

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.
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