Results 21 to 30 of about 18,734 (309)
Progress and prospects in the quantum anomalous Hall effect
APL Materials, 2022 The quantum anomalous Hall effect refers to the quantization of the Hall effect in the absence of an applied magnetic field. The quantum anomalous Hall effect is of topological nature and well suited for field-free resistance metrology and low-power ...
Hang Chi, Jagadeesh S. Moodera
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THE QUANTUM HALL EFFECT IN GRAPHENE [PDF]
Modern Physics Letters B, 2012 We investigate the quantum Hall effect in graphene. We argue that in graphene in presence of an external magnetic field there is dynamical generation of mass by a rearrangement of the Dirac sea. We show that the mechanism breaks the lattice valley degeneracy only for the n = 0 Landau levels and leads to the new observed ν = ±1 quantum Hall plateaus ...
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Higher-order quantum spin Hall effect in a photonic crystal
Nature Communications, 2020 The quantum spin Hall effect is limited to one-dimensional lower boundary states which limits the possibilities for its exploitation in photonic devices.
Biye Xie +9 more
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The fractional quantum Hall effect [PDF]
Proceedings of the National Academy of Sciences, 1986 A review is given of the fractional quantum Hall effect with the emphasis placed on the basic experimental facts. Only a superficial description is made of the current theoretical understanding.
D. C. Tsui, H. L. Stormer
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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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1/4 is the new 1/2 when topology is intertwined with Mottness
Nature Communications, 2023 In non-interacting systems, bands from non-trivial topology emerge strictly at half-filling and exhibit either the quantum anomalous Hall or spin Hall effects.
Peizhi Mai +3 more
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SUSY Quantum Hall Effect on Non-Anti-Commutative Geometry
Symmetry, Integrability and Geometry: Methods and Applications, 2008 We review the recent developments of the SUSY quantum Hall effect [hep-th/0409230, hep-th/0411137, hep-th/0503162, hep-th/0606007, arXiv:0705.4527]. We introduce a SUSY formulation of the quantum Hall effect on supermanifolds.
Kazuki Hasebe
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Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.This study reveals that higher shell S coordination can effectively modulate the spin state of FeN4 site via long‐range electronic interactions, giving rise to the oriented generation of singlet oxygen from peroxymonosulfate activation. Abstract Precise manipulation of coordination structure of single‐atom sites and establishment of schematic ...
Liang Zhang +8 more
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Advanced Functional Materials, EarlyView.A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar +8 more
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Interaction Induced Quantum Valley Hall Effect in Graphene
Physical Review X, 2015 We use pseudo-quantum electrodynamics in order to describe the full electromagnetic interaction of the p electrons in graphene in a consistent 2D formulation.
E. C. Marino +3 more
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