Anomalous cyclotron-resonance line splitting of two-dimensional holes in (311)A AlxGa1-xAs/GaAs heterojunctions

K. Hirakawa, Y. Zhao, M. B. Santos, Mansour Shayegan, D. C. Tsui

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

We have studied the far-infrared cyclotron resonance (CR) of high-mobility two-dimensional holes in AlxGa1-xAs/GaAs single interface heterojunctions grown on (311)A GaAs substrates. An anomalous anticrossing behavior was observed in the CR spectra for Landau-level filling factor ν<1. By comparing the CR spectra with the intersubband transition spectra measured at zero magnetic field, we have successfully identified the anomalous CR line splitting as a crossing of the Landau levels associated with the heavy-hole and light-hole subbands.

Original languageEnglish (US)
Pages (from-to)4076-4079
Number of pages4
JournalPhysical Review B
Volume47
Issue number7
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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