Thermal Drag of the Antiphase Domain Boundary Motion

Abstract

AbstractÐThe antiphase domain boundary is a region in materials where ordering of atoms changes from one structural variant to another. The in¯uence of the internal energy excess on the dynamics of such a boundary is considered in the framework of the Onsager theory of linear response. The internal energy transport entails a temperature hump in the transition region and causes a drag eect. An evolution equation that takes into account the ®nite thermal conductivity is derived. An experimental setup to reveal the thermal drag is suggested. #