Open AccessPolaron effect in a GaAs film: the fraction-dimensional space approach
Author(s) -
Zhenhua Wu,
Hua Li,
Liangxing Yan,
Bingcan Liu,
Qiang Tian
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.097302
Subject(s) - polaron , substrate (aquarium) , binding energy , effective mass (spring–mass system) , materials science , condensed matter physics , space (punctuation) , mass fraction , physics , atomic physics , composite material , quantum mechanics , geology , electron , linguistics , oceanography , philosophy
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 Lw70 and the substrate thickness of Lb200 , 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 Lw70 or Lb200 , the substrate thickness has no influence on the polaron binding energy and mass shift.