POLARON CORRECTION TO THE D- CENTER IN A QUANTUM-WELL

被引：7

作者：

SHI, JM

PEETERS, FM

DEVREESE, JT

机构：

[1] UNIV ANTWERP, DEPT PHYS, UNIV PLEIN 1, B-2610 ANTWERP, BELGIUM

[2] RUCA, EINDHOVEN, NETHERLANDS

[3] TUE, EINDHOVEN, NETHERLANDS

来源：

PHYSICA B-CONDENSED MATTER | 1993年 / 184卷 / 1-4期

关键词：

D O I：

10.1016/0921-4526(93)90391-I

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A theoretical study is presented of the negative-donor centre (D-) in a quantum well (QW) in a magnetic field. The energy levels of a spin singlet state (s-like), and spin triplet states (p+/-t-like) of the D- centre are calculated by a variational approach. The polaron correction to the D states is discussed within second-order perturbation theory in which only the three-dimensional (3D) bulk phonon modes of GaAs are invoked. We find that the polaron correction is very important in order to explain the experimental results.

引用

页码：417 / 421

页数：5

共 14 条

[1] SPECTROSCOPIC OBSERVATION OF D-, DO AND CYCLOTRON-RESONANCE LINES IN N-GAAS AND N-INP AT INTERMEDIATE AND STRONG MAGNETIC-FIELDS AND UNDER DIFFERENT CONDITIONS OF BIAS, TEMPERATURE AND PRESSURE [J].