Nonlinear Thermal Properties of Three-Terminal Mesoscopic Dielectric Systems

TL;DR

This study investigates the nonlinear thermal behavior of three-terminal mesoscopic dielectric systems at low temperatures, revealing that the central reservoir's temperature exceeds the average of the others and demonstrating thermal rectification effects.

Contribution

It provides new insights into nonlinear thermal responses and introduces a model for thermal rectification in mesoscopic dielectric systems.

Findings

Central reservoir temperature exceeds average in symmetric systems

Nonlinear thermal phenomena observed in asymmetric systems

Thermal rectification model proposed

Abstract

This paper studies the thermal properties of three-terminal mesoscopic dielectric systems in the nonlinear response regime at low temperature. For a symmetric three-terminal system, when the temperature is finitely different between the left and right thermal reservoirs, the temperature of the central thermal reservoir is always higher than the averaging temperature of the others. This nonlinear thermal phenomenon is also observed for asymmetric three-terminal systems. At the end, a model of thermal rectification is presented.