Results 11 to 20 of about 6,957 (201)
Quantum spin Hall effect in magnetic graphene [PDF]
Nature CommunicationsA promising approach to attain long-distance coherent spin propagation is accessing topological spin-polarized edge states in graphene. Achieving this without external magnetic fields necessitates engineering graphene band structure, obtainable through ...
Talieh S. Ghiasi +11 more
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Higher-order quantum spin Hall effect in a photonic crystal [PDF]
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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Quantum Spin Hall Effect [PDF]
Physical Review Letters, 2006 The quantum Hall liquid is a novel state of matter with profound emergent properties such as fractional charge and statistics. Existence of the quantum Hall effect requires breaking of the time reversal symmetry caused by an external magnetic field. In this work, we predict a quantized spin Hall effect in the absence of any magnetic field, where the ...
B. Andrei Bernevig, Shou-Cheng Zhang
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Analytical theory and possible detection of the ac quantum spin Hall effect [PDF]
Scientific Reports, 2017 We develop an analytical theory of the low-frequency ac quantum spin Hall (QSH) effect based upon the scattering matrix formalism. It is shown that the ac QSH effect can be interpreted as a bulk quantum pumping effect. When the electron spin is conserved,
W. Y. Deng +6 more
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Quantum Renormalization of the Spin Hall Effect [PDF]
Physical Review Letters, 2010 By quantum Monte Carlo simulation of a realistic multiorbital Anderson impurity model, we study the spin-orbit interaction (SOI) of an Fe impurity in Au host metal. We show, for the first time, that the SOI is strongly renormalized by the quantum spin fluctuation.
Bo Gu +6 more
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Spin-charge separation and quantum spin Hall effect of $$\beta$$ β -bismuthene [PDF]
Scientific Reports, 2023 Multiple works suggest the possibility of classification of quantum spin Hall effect with magnetic flux tubes, which cause separation of spin and charge degrees of freedom and pumping of spin or Kramers-pair. However, the proof of principle demonstration
Alexander C. Tyner, Pallab Goswami
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Quantum spin Hall effect of light [PDF]
Science, 2015 A quantum twist on classical optics Interpreting recent experimental results of light interactions with matter shows that the classical Maxwell theory of light has intrinsic quantum spin Hall effect properties even in free space. Complex effects in condensed-matter systems can often find analogs in cleaner optical systems. Bliokh
Konstantin Y. Bliokh +2 more
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Duality in the quantum Hall effect: The role of electron spin [PDF]
Physical Review B, 2000 At low temperatures the phase diagram for the quantum Hall effect has a powerful symmetry arising from the Law of Corresponding States. This symmetry gives rise to an infinite order discrete group which is a generalisation of Kramers-Wannier duality for the two dimensional Ising model.
Brian P. Dolan
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Fragility of the fractional quantum spin Hall effect in quantum gases [PDF]
New Journal of Physics, 2014 We consider the effect of contact interaction in a prototypical quantum spin Hall system of pseudo-spin-1/2 particles. A strong effective magnetic field with opposite directions for the two spin states restricts two-dimensional particle motion to the ...
O Fialko, J Brand, U Zülicke
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First-Principles Study on the High Spin-Polarized Ferromagnetic Semiconductor of Vanadium-Nitride Monolayer and Its Heterostructures [PDF]
MoleculesThe newly discovered 2D spin-gapless magnetic materials, which provide new opportunities for combining spin polarization and the quantum anomalous Hall effect, provide a new method for the design and application of memory and nanoscale devices.
Guiyuan Hua +4 more
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