Magneto-absorption of donor impurities in quantum-well wires

We show calculations for far-infrared absorption of shallow-donor impurities in quantum well wires in the presence of an external magnetic field. The wave functions and the eigenvalues are obtained in the effective-mass approximation by using an extended variational approach in which the ground and excited magneto-impurity states are simultaneously obtained. We investigate the allowed intra-donor transitions for radiation circularly polarized in the plane perpendicular to the magnetic field. We present results for the absorption coefficient as a function of the photon energy for several field strengths and arbitrary impurity positions. r 2008 Elsevier Ltd. All rights reserved.

• Type: Journal
• Year: 2008
• Where: MJ
• Authors: J. D. Correa, Z. Barticevic, M. Pacheco
• Keywords: Extended Variational Approach, External Magnetic Field, Magnetic Field, MJ 2008