Possibility of the Effect of Anisotropic Transparency in Semi-Conductor Structures

The present paper examines the possibility of asymmetric effect of the adjacent to barrier physically different media, or anisotropic structure of the barrier itself, on probability of the oppositely directed transitions of current carriers through the potential barrier. It is shown, that in the above cases transparency of the barrier can be anisotropic. Consequently, there is a possibility that the chaotic thermal motion of particles may self-transform into the ordered motion. Stationary state of such systems turns to be different from thermodynamical equilibrium, which, in its turn, results in possibility of the effective work due to spontaneous cooling of the barrier region. Thermodynamics of these processes is being considered herein.