Fingerprints of the Anisotropic Spin-Split Hole Dispersion in Resonant Inelastic Light Scattering in Two-Dimensional Hole Systems

URN to cite this document:: urn:nbn:de:bvb:355-epub-321651
DOI to cite this document:: 10.5283/epub.32165

Hirmer, Michael ; Hirmer, Marika ; Schuh, Dieter ; Wegscheider, Werner ; Korn, Tobias ; Winkler, R. ; Schueller, Christian

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Date of publication of this fulltext: 16 Jul 2015 14:26

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Abstract

In resonant inelastic light scattering experiments on two-dimensional hole systems in GaAs−AlxGa1−xAs single quantum wells we find evidence for the strongly anisotropic spin-split hole dispersion at finite in-plane momenta. In all our samples we detect a low-energy spin-density excitation of a few meV, stemming from excitation of holes of the spin-split ground state. The detailed spectral shape ...