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

TL;DR

This paper explores how anisotropic barriers in semiconductor structures can lead to asymmetric transparency, potentially transforming chaotic thermal motion into ordered motion and enabling spontaneous cooling effects.

Contribution

It introduces the concept that anisotropic barrier structures can cause asymmetric carrier transition probabilities, affecting thermodynamic states in semiconductor systems.

Findings

Barrier transparency can be anisotropic due to media asymmetry.

Chaotic thermal motion may self-organize into ordered motion.

Spontaneous cooling of the barrier region is possible.

Abstract

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.