Vertical transport in semiconductor superlattices probed by miniband-to-acceptor magnetoluminescence

Brian Skromme, R. Bhat, M. A. Koza, S. A. Schwarz, T. S. Ravi, D. M. Hwang

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The cyclotron motion of electrons in coupled-well AlGaAs/GaAs superlattices is investigated by photoluminescence of conduction band to acceptor transitions in magnetic fields up to 13 T, applied either parallel or perpendicular to the layers. For parallel fields, three different regimes are observed as the ratio of the cyclotron radius to the superlattice period is reduced, namely, tunneling cyclotron motion within the miniband, miniband breakdown, and finally a transition from electric to magnetic quantization. A fully quantum-mechanical calculation agrees well with experiment.

Original languageEnglish (US)
Pages (from-to)2050-2053
Number of pages4
JournalPhysical Review Letters
Volume65
Issue number16
DOIs
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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