Quantum Transport in Magnetic Field

Abstract

Charge transport through nanodevices is af- fected by the device geometry and dimensions along with environmental conditions like temperature of operation, ex- ternal electric and magnetic fields.V-I characteristics of the quantum dot are subject to change under the influence of the magnetic field,extent of variation in V-I characteristics of the Quantum Dot are function of magnetic field strength, size and type of the Quantum Dot. We present the model of V-I characteristic equation with study of V-I characteristics of the quantum dot in non-equilibrium and steady state condi- tions in time varying magnetic field. We use non-equilibrium green function based approach for the computations.The time varying magnetic field induces sinusoidal response in the current. The sinusoidal response current is a function of magnetic field strength, type of quantum dot(geometry and material), dimensions of the quantum dot, frequency of the field oscillations and applied lead potential difference.