物理学报Issue(9)：390-394,5.DOI:10.7498/aps.62.097302
分数维方法研究GaAs薄膜中的极化子*
Polaron effect in a GaAs film:the fraction-dimensional space approach∗
摘要
Abstract
Within the framework of the fraction-dimensional space approach, the binding energy and the effective mass of a polaron confined in a GaAs film deposited on Al0.3Ga0.7As substrate have been investigated. It is shown that the polaron binding energy and mass shift decrease monotonously with increasing film thickness. For the film thickness of Lw<70 ˚A and the substrate thickness of Lb<200 ˚A, the substrate thickness will influence the polaron binding energy and mass shift. The polaron binding energy and mass shift increase with increasing substrate thickness. In the region Lw>70 ˚A or Lb>200 ˚A, the substrate thickness has no influence on the polaron binding energy and mass shift.关键词
分数维方法/GaAs薄膜/极化子/低维异质结构Key words
fractional-dimensional approach/GaAs film/polaron/low-dimensional heterostructure引用本文复制引用
武振华,李华,严亮星,刘炳灿,田强..分数维方法研究GaAs薄膜中的极化子*[J].物理学报,2013,(9):390-394,5.基金项目
安徽省高校省级科学研究重点项目(批准号:KJ2012A203)和巢湖学院博士启动基金资助的课题.@@@@Project supported by the Province Key Program of Science Research of Anhui high school (Grant No:KJ2012A203) and the Doctor Start-up Foundations by Chaohu college （批准号:KJ2012A203）
