强耦合界面极化子的相变
来源期刊：中南大学学报(自然科学版)1989年第5期
论文作者：杨兵初
文章页码：555 - 561
关键词：相变； 表面态； 自由能/极化子
Key words：phase transition； surface state； free energy/polaron
摘 要：本文利用боголюбов不等式讨论了界面极化子的温度关系,发现在某个临界温度下发生由极化子相到自由电子相的相变。当温度小于临界温度时,极化子的各物理量均受温度影响。极化子只能存在于静态介电常数较小的介质中。
Abstract: The temperature dependence of strong coupling interface polaron (SCIP) is discussed by means of Bogolyubov inequality. It is shown for SCIP that the phase transition from polaron to free electron occurs at a critical temperature T0. Below T0, behaviour of SCIP greatly depends on temperature. SCIP can only exist in the dielectric with smaller state dielectric constant ε0.
