Surface optical phonon-assisted electron Raman scattering in a semiconductor quantum disc

• 来源期刊: 中国物理（英文版）
• 学科: 物理学
• 关键词: Raman scattering surface optical phonon modes quantum disc
• 年，卷（期）: 2002,（7）
• 页码范围: 730-736
• 页数: 7页
• 分类号: O4
• 语种: 英文

摘要

We have carried out a theoretical calculation of the differential cross section for the electron Raman scatteringprocess associated with the surface optical phonon modes in a semiconductor quantum disc. Electron states are consid-ered to be confined within a quantum disc with infinite potential barriers. The optical phonon modes we have adoptedare the slab phonon modes by taking into consideration the Frohlich interaction between an electron and a phonon.The selection rules for the Raman process are given. Numerical results and a discussion are also presented for variousradii and thicknesses of the disc, and different incident radiation energies.