强耦合界面极化子的相变  

INTERFACF POLARON PHASE TRANSITION IN THE STRONG COUPLING LIMIT

作　　者：杨兵初[1] 

机构地区：[1]中南矿冶学院应用物理系

出　　处：《中南矿冶学院学报》1989年第5期555-561,共7页

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。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 T_0. Below T_0, behaviour of SCIP greatly depends on temperature. SCIP can only exist in the dielectric with smaller state dielectric constant ε_0.

关 键 词：耦合界面 极化子 相变 自由能 

分 类 号：O484.8[理学—固体物理]