Detection of the electron spin resonance of two-dimensional electrons at large wave vectors

I. V. Kukushkin, J. H. Smet, D. S. Lyne Aabergel, V. I. Fal'ko, W. Wegscheider, K. Von Klitzing

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We have investigated the electron spin resonance at nonzero wave vector in GaAs single quantum wells by combining the virtues of high frequency surface acoustic wave generation to produce excitations with large wave numbers with a sensitive optical scheme to detect resonant absorption. The observed large deviations from the single particle Zeeman energy are attributed to the exchange interaction. The enhancement of the electronic g* factor is, however, substantially smaller compared with theoretical predictions for spin waves when adopting a bare Coulomb interaction potential.

    Original languageEnglish
    Article number126807
    JournalPhysical Review Letters
    Volume96
    Issue number12
    DOIs
    Publication statusPublished - 2006

    Research Beacons, Institutes and Platforms

    • National Graphene Institute

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