Abstract
We predict a double-resonant feature in the magnetic field dependence of the phonon-mediated longitudinal conductivity of a two-subband quasi-two-dimensional electron system in a quantizing magnetic field. The two sharp peaks in appear when the energy separation between two Landau levels belonging to different size-quantization subbands is favorable for acoustic-phonon transitions. One-phonon and two-phonon mechanisms of electron conductivity are calculated and compared. The phonon-mediated interaction between the intersecting Landau levels is considered and no avoided crossing is found at thermal equilibrium.
1 More- Received 1 March 2006
- Accepted 19 July 2006
DOI:https://doi.org/10.1103/PhysRevB.74.085321
©2006 American Physical Society