磁场中与形变势相互作用的表面极化子的有效质量

近年来 ,磁场中极性晶体表面极化子的性质已引起人们的广泛关注。Ｌａｒｓｅｎ1 ] 采用四级微扰法计算了磁场中二维极化子的基态能量。Ｗｅｉ等2 ] 用格林函数方法研究了交界面磁极化子的回旋共振质量和频率。本文作者之一3] 用线性组合算符讨论了磁场中表面极化子的性质。实际上 ,到目前为止 ,对表面磁极化子的研究 ,只限于考虑表面电子只与表面光学 (ＳＯ)声子和体纵光学 (ＬＯ)声子相互作用 ,而忽略了表面电子与表面声学 (ＳＡ)声子相互作用。对电子通过形变势与晶格声学振动相互作用形成的准粒子 声学形变势 (ＡＤＰ)极化子性质的研…

Effective Mass of Surface Polaron Interacting with Deformation Potential in Magnetic Field

In recent years,the properties of the surface polaron in polar crystals in a magnetic field have been of considerable interest.Larsen proposed a fourth order perturbation method to calculate the ground state energy of two dimensional polaron in a magnetic field.Wei et al. studied the cyclotron resonance mass and resonance frequency of the interface magnetopolaron using the Green's function method.The properties of surface polaron in a magnetic field have been discussed by linear combination operator method by the present authors and co workers. In fact,so far research on the surface magnetopolaron was restricted to the approximation and calculation where the interaction of the surface electron with LO and SO phonons is considered,whereas the interaction of the surface electron with SA phonon is neglected.So far,the research on the quasi particle,the acoustic deformation potential (ADP) polaron,formed by the interaction of electrons with acoustic lattice vibration is very scarce. In this paper,the properties of the surface magnetopolaron interacting with the deformation potential in polar crystals,which has a weak coupling with surface optical phonon and surface acoustic phonon,are studied .The effective mass of the surface magnetopolaron interacting with the deformation potential in polar crystals is derived by using linear combination operator method.