ELECTRONIC TRANSMISSION COEFFICIENT FOR SOLID-STATE STRUCTURES WITH SPATIALLY-VARIABLE ANISOTROPIC ELECTRONIC EFFECTIVE-MASS

The method for calculating the electronic transmission coefficient for elastic electronic transport through a layered structure with spatial ly variable anisotropic effective mass and one-electron potential ener gy is proposed. In this method, the transmission coefficient is evalua ted by means of a certain matrix quantity assigned to any region of th e sample. This matrix is determined by functional shapes of the recipr ocal effective mass tensor and a one-particle potential energy in a gi ven region as well as by the energy and group velocity of an incident electron. As an example, the transmission coefficients are calculated for a triple-barrier structure as well as for a structure obtained by replacing the inner potential barrier by an anisotropic conductive lay er.