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
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Impact of Dysprosium doping on the structural and electrical properties of BiSbTe3 single crystals
Nisha Yadav,M.D. Anoop,Jyoti Yadav,Rini Singh,Nabarun Bera,Ankur Jain,Takayuki Ichikawa,Kamlendra Awasthi,Rajesh Kumar +8 more
TL;DR: In this paper , the structural, morphological, electrical and Hall measurements were performed on the synthesized single crystals, and the lattice parameters were found decreasing with Dysprosium (Dy) doping, indicating the incorporation of Dy atoms in a lattice of BiSbTe3.
Journal ArticleDOI
Electron scattering in a superlattice of line defects on the surface of topological insulators.
H. Dehnavi,Amir Ali Masoudi,M. Saadat,Hassan Ghadiri,Alireza Saffarzadeh,Alireza Saffarzadeh +5 more
TL;DR: In this article, the influence of surface line defects acting as structural ripples on propagation of electrons is studied in two perpendicular directions due to the asymmetry of warped energy contour under momentum exchange.
Posted Content
Spin-orbit torque: Moving towards two-dimensional van der Waals heterostructures
TL;DR: In this paper, the authors introduce the emerging approaches to realizing SOT nanodevices including techniques to evaluate the SOT efficiency as well as the opportunities and challenges of using 2D topological materials and 2D van der Waals (vdW) materials in such applications.
Journal ArticleDOI
DFT study of the formation of the Sb-Ag(1 1 1) (√3×√3) – R30° surface alloy
Ivan N. Yakovkin,N. Petrova +1 more
TL;DR: In this paper , the substitutional process was used to explain the formation of adsorbed Sb layer on the Ag(1 1 1) surface by means of Sb deposition instead of the forming of the SbAg2 surface alloy.
Non-trivial topology in rare-earth monopnictides from dimensionality reduction
TL;DR: In this article , a quantum spin Hall insulator phase was found in LaSb(001) films as the thickness is reduced to 7, 5, or 3 monolayers, attributed to a strong quantum confinement effect on the in-plane electron pockets, and the lack of quantum confinement on the out-of-plane pocket in reciprocal space projected onto zone center.
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.