SELF-TRAPPING TRANSITION OF ACOUSTIC POLARON IN SLAB

被引：2
|
作者：
Hou, Junhua [1 ]
Dong, Xiaoming
Duan, Xiaofeng
机构：
[1] Shanxi Normal Univ, Coll Phys & Informat Engn, Linfen 041004, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2013年 / 27卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Slab; acoustic polaron; self-trapping; PHASE-TRANSITION; DISCONTINUITY; ELECTRONS; STATE; GAN;
D O I：
10.1142/S0217984913500504
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Self-trapping transition of the acoustic polaron in slab is researched by calculating the polaron ground state energy and the first derivative of the ground state energy with respect to the electron-phonon coupling. It is indicated that the possibility of self-trapping transition for acoustic polaron in slab fall in between 3D and 2D systems. The electron may be self-trapped in slab systems of GaN, AlN and alkali halides, if the slab systems are thinner than one over ten of the length unit (h) over bar /mc.
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页数：8
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