Dynamic Deformation Electron-Phonon Interaction in Disordered Bulk Semiconductor

• 作者: Ami Chand Sharma Pushpendra Tripathi Syed Sikandar Zulqarnyn Ashraf Syed Tahir Hasan
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 医学
• 关键词: ELECTRON-PHONON SCATTERING Rate Dynamic Screening DEFORMATION Potential
• 年，卷（期）: ngtwlgjqkyw_2012,（1）
• 页码范围: 42-46
• 页数: 5页
• 分类号: R73

摘要

We present our theoretical investigations on the effects of disorder on the electron-phonon interaction in semiconducting GaAs system. Both the temperature (T) and disorder (electron mean free path l) dependences of the electron-phonon scattering rate have been determined. On consideration of the dynamic screening, we find a significant change in the temperature exponent as well as the pre factor from the earlier reported temperature power law dependence result ?T6 obtained under static screening. Also the dynamic screening makes a noticeable change in the character of the dependence of scattering rate on the mean free path from the static screening result.