Hole magnetoplasmons in semiconductor heterostructures

Sung Ryul Yang, A. H. MacDonald

Research output: Contribution to journalArticle

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The hole magnetoplasmon dispersion of GaAs/AlxGa1-xAs heterostructures is calculated in a time-dependent Hartree-Fock approximation. We find that cyclotron-resonance positions are significantly shifted by hole-hole interactions and that the hole magnetoplasmon dispersion increases monotonically with wave vector. Both results differ from the case of an electron gas, where cyclotron-resonance-position shifts are forbidden by Kohns theorem, and are consequences of strong heavy- and light-hole mixing.

Original languageEnglish
Pages (from-to)1294-1297
Number of pages4
JournalPhysical Review B
Issue number2
Publication statusPublished - 1990 Dec 1
Externally publishedYes


ASJC Scopus subject areas

  • Condensed Matter Physics

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