A brief review of thermal transport in mesoscopic systems from nonequilibrium Green’s function approach

With the rapidly increasing integration density and power in nanoscale electronic devices, thermal management concerning heat generation energy harvesting becomes quite crucial. Since phonon is major carrier semiconductors, transport due to phonons mesoscopic systems has attracted much attention. In quantum studies, nonequilibrium Green’s function (NEGF) method a versatile powerful tool that been developed for several decades. this review, we will discuss theoretical investigations of using NEGF approach from two aspects. For aspect transport, briefly introduced its applications on including one-dimensional atomic chains, multi-terminal systems, transient are discussed. thermoelectric caloritronic effects which charge, spin, valley degrees freedom manipulated by temperature gradient The time-dependent behavior also presented regime within partitioned scheme based method.