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25 papers · 1 filter
Spin Hall effect in the kagome lattice with Rashba spin-orbit interaction
Guocai Liu, Ping Zhang, Zhigang Wang +1
We study the spin Hall effect in the kagomé lattice with Rashba spin-orbit coupling. The conserved spin Hall conductance (see text) and its two components, i.e., the c…
Topological edge states and quantum Hall effect in the Haldane model
Ningning Hao, Ping Zhang, Zhigang Wang +2
We study the topological edge states of the Haldane's graphene model with zigzag/armchair lattice edges. The Harper equation for solving the energies of the edge states is derived.…
Chiral susceptibility and the scalar Ward identity
Lei Chang, Yu-xin Liu, Craig D. Roberts +3
The chiral susceptibility is given by the scalar vacuum polarisation at zero total momentum. This follows directly from the expression for the vacuum quark condensate so long as a…
Adsorption and dissociation of O at Be(0001): First-principles prediction of an energy barrier on the adiabatic potential energy surface
Ping Zhang, Bo Sun, Yu Yang
The adsorption and dissociation of O molecules at the Be(0001) surface is studied by using density-functional theory within the generalized gradient approximation and a super…
Well-posedness in critical spaces for the compressible Navier-Stokes equations with density dependent viscosities
Qionglei Chen, Changxing Miao, Zhifei Zhang
In this paper, we prove the local well-posedness in critical Besov spaces for the compressible Navier-Stokes equations with density dependent viscosities under the assumption that…
Quantum blockade and loop current induced by a single lattice defect in graphene nanoribbons
Jie-Yun Yan, Ping Zhang, Bo Sun +4
We investigate theoretically the electronic transport properties in narrow graphene ribbons with an adatom-induced defect. It is found that the lowest conductance step of a metalli…