Observation of resonant inter-Landau-level tunneling in a superlattice

authored by

W. Muller, H. T. Grahn, R. J. Haug, K. Ploog

Abstract

Inter-Landau-level tunneling between pure two-dimensional (2D) systems is investigated in a GaAs-AlAs superlattice. Resonances due to elastic as well as inelastic scattering up to Δn=9 (n Landau-level index) are observed. The corresponding Landau fans can be simulated when conduction-band nonparabolicities are included. The observed polaron-induced renormalizations of Landau-level energies can be quantitatively described within the theory of 2D magnetopolarons. Resonant tunneling between Landau levels with the emission of zone-folded acoustic phonons is also present.

External Organisation(s)

Max Planck Institute for Solid State Research (MPI-FKF)

Type

Article

Journal

Physical Review B

Volume

46

Pages

9800-9803

No. of pages

4

ISSN

0163-1829

Publication date

01.01.1992

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Condensed Matter Physics

Electronic version(s)

https://doi.org/10.1103/PhysRevB.46.9800 (Access: Unknown)