Tunable spin-splitting and spin-resolved ballistic transport in GaAs/AlGaAs two-dimensional hole gas

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.1376

Lu, Jian Ping ; Yau, Jeng-Bang ; Shukla, S. ; Shayegan, M. ; Wissinger, L. ; Rössler, Ulrich ; Winkler, R.

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Veröffentlichungsdatum dieses Volltextes: 05 Aug 2009 13:28

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Zusammenfassung

We report quantitative experimental and theoretical results revealing the tunability of spin splitting in high-mobility two-dimensional GaAs hole systems, confined to either a square or a triangular quantum well, via the application of a surface-gate bias. The spin splitting depends on both the hole density and the symmetry of the confinement potential and is largest for the highest densities in ...