2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/19641We 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.3 figures. Proceedings of the 26th International Conference on the Physics of SemiconductorsMaterials ScienceStrongly Correlated Electronstext