Abstract
A detailed theoretical analysis is made of the experimental results on the polaron cyclotron-resonance mass in GaAs/As heterostructures of Langerak et al. [Phys. Rev. B 38, 13 133 (1988)], with emphasis on the electron-density dependence. We found that (1) coupling to bulk GaAs LO phonons is responsible for the observed resonant polaron cyclotron-resonance effects, and (2) the occupation effect with inclusion of spin splitting is mainly responsible for the electron-density dependence of the polaron-mass renormalization.
- Received 1 May 1991
DOI:https://doi.org/10.1103/PhysRevB.45.4296
©1992 American Physical Society