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Cyclotron Resonance of Itinerant Holes in Ferromagnetic InMnAs/GaSb Heterostructures

G. A. Khodaparast·J. Kono·Y. H. Matsuda·T. Ikaida·S. Ikeda·N. Miura·T. Slupinski·A. Oiwa·H. Munekata
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Abstract

We report the first observation of hole cyclotron resonance (CR) in ferromagnetic InMnAs/GaSb heterostructures both in the high-temperature paramagnetic phase and the low-temperature ferromagnetic phase. We clearly resolve two resonances that exhibit strong temperature dependence in position, linewidth, and intensity. We attribute the two resonances to the so-called fundamental CR transitions expected for delocalized holes in the valence band in the magnetic quantum limit, demonstrating the existence of $p$-like itinerant holes that are describable within the Luttinger-Kohn effective mass theory.

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G. A. Khodaparast, J. Kono, Y. H. Matsuda, T. Ikaida, S. Ikeda, N. Miura, T. Slupinski, A. Oiwa, H. Munekata. 2002-07-19. Cyclotron Resonance of Itinerant Holes in Ferromagnetic InMnAs/GaSb Heterostructures. https://arxiv.org/abs/cond-mat/0207485

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