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Magnetic-field-induced suppression of spontaneous spin-splitting of hole subbands
KTH, Superseded Departments, Physics.
2000 (English)In: Physica. E, Low-Dimensional systems and nanostructures, ISSN 1386-9477, E-ISSN 1873-1759, Vol. 6, no 04-jan, 779-782 p.Article in journal (Refereed) Published
Abstract [en]

The spin-splitting in the valence band in an InxGa1-xAs/InxGa1-xAsyP1-y quantum well is investigated theoretically using a 6 x 6 Luttinger-Kohn Hamiltonian. We compare the Landau levels in a perpendicular magnetic field with the corresponding results for the subband dispersion;. It is shown that the asymmetry of the quantum well has a very small impact on the Landau level splitting for B > 1 T in sharp contrast to the subbands in the absence of a magnetic field. The significance of our findings on the interpretation of Shubnikov-de Haas experiments is discussed.

Place, publisher, year, edition, pages
2000. Vol. 6, no 04-jan, 779-782 p.
Keyword [en]
spin splitting, Landau revels, quantum wells, hole subbands, Shubnikov-de Haas oscillations, inversion asymmetry
URN: urn:nbn:se:kth:diva-19608ISI: 000085770600185OAI: diva2:338300
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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