Electron Raman scattering in cylindrical quantum wires
School of Physics and Electronic Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, P.R. China
Corresponding author: a email@example.com
Revised: 31 August 2006
Published online: 13 October 2006
Electron Raman scattering (ERS) is investigated in a free-standing semiconductor quantum wire of cylindrical geometry for two classes of materials CdS and GaAs. The differential cross section (DCS) involved in this process is calculated as a function of a scattering frequency and the radius of the cylinder. Electron states are considered to be confined within a free-standing quantum wire (FSW). Single parabolic conduction and valence bands are assumed. The selection rules are studied. Singularities in the spectra are found and interpreted for various radii of the cylinder.
PACS: 78.67.Lt – Quantum wires / 78.67.-n – Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures / 78.66.Fd – III-V semiconductors
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2006