Xuean Zhao

Nonlinear quantum capacitance

We analyze the nonlinear voltage dependence of electrochemical capacitance for nanoscale conductors. This voltage dependence is due to the finite density of states of the conductors. Within Hartree theory we derive an exact expression for the electrochemical capacitance–voltage curve for a parallel plate system. The result suggests a quantum scanning capacitance microscopy at the nanoscale: by inverting the capacitance–voltage expression one is able to deduce the local spectral function of the nanoscale conductor.

Nonvanishing spin Hall currents in the presence of magnetic impurities

The intrinsic spin Hall conductivity in a two-dimensional electron gas with Rashba spin-orbit coupling is evaluated by taking into account the anisotropic coupling between magnetic impurities and itinerant electrons. In our calculation, Kubos linear response formalism is employed and the vertex correction is considered. In the semiclassical limit

Topological asymmetry induced electronic transport in three terminal graphene nanoribbon structure

\ensuremath{\mu}⪢1∕\ensuremath{\tau}

Exchange effects on spin-dependent ac transport

, a nonvanishing spin Hall conductivity

The effect of surface bond reconstruction of thermal contact surfaces on phonon transport in atomic wire

{\ensuremath{\sigma}}_{\mathit{sH}}

Dynamic conductance in L-shaped graphene nanosystems

is found to depend on the momentum relaxation time

Negative electrochemical capacitance for a double-quantum-dot device

\ensuremath{\tau}

ELECTRON TRANSPORT IN MULTI-TERMINAL GRAPHENE NANODEVICE WITH INCLINED CROSS STRUCTURES

, spin-orbit splitting

Thermal conductance attributed to phonon and electron in graphene nanoribbon

\ensuremath{\Delta}

Capacitive Effects of Gate on Spin-Dependent AC Transport

, and the anisotropic coefficient of interaction between itinerant electrons and magnetic impurities. The clean limit of