Charge Transfer Induced Caloric Effects

Abstract

In this paper, the entropy change and the caloric effects induced by charge transfer are discussed. According to the general discussion based on simple physical arguments in the framework of itinerant electrons, large caloric effects can be induced by the charge transfer mechanism even in non‐magnetic materials. This fact, which can be very important to build solid state refrigerators with high performance, opens a new horizon in this area of research. We also suggest some compounds which are good candidates to exhibit caloric effects induced by the physical mechanism of charge transfer in a wide range of temperatures.