Results 71 to 80 of about 6,957 (201)
Realization of monolayer ZrTe5 topological insulators with wide band gaps
Nature CommunicationsTwo-dimensional topological insulators hosting the quantum spin Hall effect have application potential in dissipationless electronics. To observe the quantum spin Hall effect at elevated temperatures, a wide band gap is indispensable to efficiently ...
Yong-Jie Xu +18 more
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Majorana chiral spin liquid in a model for Mott insulating cuprates
Physical Review Research, 2022 The large thermal Hall conductivity recently detected in Mott insulating cuprates has been attributed to chiral neutral spin excitations. A quantum spin liquid (QSL) with Majorana excitations, Chern number ±4 and large thermal Hall conductivity is found ...
Jaime Merino, Arnaud Ralko
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Robust all-electrical topological valley filtering using monolayer 2D-Xenes
npj 2D Materials and Applications, 2022 We propose a realizable device design for an all-electrical robust valley filter that utilizes spin protected topological interface states hosted on monolayer 2D-Xene materials with large intrinsic spin–orbit coupling.
Koustav Jana, Bhaskaran Muralidharan
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Quantum and classical localization, the spin quantum Hall effect, and generalizations [PDF]
Physical Review B, 2002 We consider network models for localisation problems belonging to symmetry class C. This symmetry class arises in a description of the dynamics of quasiparticles for disordered spin-singlet superconductors which have a Bogoliubov - de Gennes Hamiltonian that is invariant under spin rotations but not under time-reversal.
Beamond, E, Cardy, J, Chalker, J
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Non-Abelian spin Hall insulator
Physical Review ResearchMotivated by a recent experiment reporting the fractional quantum spin Hall effect in twisted MoTe_{2}, we investigate microscopically the prospects of realizing exotic topologically ordered states beyond conventional quantum Hall physics. We show that a
Ahmed Abouelkomsan, Liang Fu
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Dirac fermions and topological phases in magnetic topological insulator films
SciPost PhysicsWe develop a Dirac fermion theory for topological phases in magnetic topological insulator films. The theory is based on exact solutions of the energies and the wave functions for an effective model of the three-dimensional topological insulator (TI ...
Kai-Zhi Bai, Bo Fu, Shun-Qing Shen
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Advanced Physics Research, 2023 Oxide heterointerfaces are gaining popularity for a variety of applications because of a wide range of emergent quantum phenomena. The creation of a highly conducting and spin‐polarized 2D electron gas (2DEG) with anomalous Hall effect at the EuO–KTaO3 ...
Sonali Kakkar, Chandan Bera
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Effects of Interaction on Quantum Spin Hall Insulators
Physical Review Letters, 2011 We study the $S_z$-conserving quantum spin Hall insulator in the presence of Hubbard $U$ from a field theory point view. The main findings are the following. (1) For arbitrarily small U the edges possess power-law correlated antiferromagnetic XY local moments. Gapless charge excitations arise from the Goldstone-Wilczek mechanism.
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α-RuCl3 and other Kitaev materials
APL Materials, 2022 Quantum spin liquids have been drawing much attention in recent years as a platform to develop future quantum technologies, such as topological quantum computing.
Subin Kim, Bo Yuan, Young-June Kim
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Quantum spin Hall effect in metamaterials
Acta Physica Sinica, 2017 Quantum spin Hall effect (QSHE) of electrons has improved the development of condensed matter researchnowadays, which describesone kind of spin-dependent quantum transport behavior in solid state. Recently, a variety of theoretical and experimental work has revealed that Maxwell equations, which is formulated 150 years ago and ultimately ...
Ren Jie +4 more
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