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Title
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Selective suppression of Dresselhaus or Rashba spin-orbit coupling effects by the Zeeman interaction in quantum dots
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Author
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Abstract
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| We study single- and two-electron parabolic quantum dots in the presence of linear Dresselhaus and Rashba spin-orbit interactions. Contributions of both types of spin-orbit coupling are investigated in the context of the spin polarization of the system at high magnetic fields. We demonstrate that for negative Landé factors the effect of the Dresselhaus coupling is suppressed at high magnetic field, which for structures without inversion asymmetry leads to a completely spin-polarized system and a strict antisymmetry of the wave functions with respect to the interchange of spatial-electron coordinates. For negative Landé factor the Rashba coupling is preserved at high field and consequently the spin polarization of the systems as well as the spatial antisymmetry of the two-electron wave function remain approximate. |
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Language
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English
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Source (journal)
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Physical review : B : solid state. - Lancaster, Pa, 1970 - 1978
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Publication
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Lancaster, Pa
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2009
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ISSN
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0556-2805
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DOI
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10.1103/PHYSREVB.79.235303
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Volume/pages
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79
:23
(2009)
, p. 235303,1-235303,13
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ISI
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000267699500073
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Full text (Publisher's DOI)
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Full text (open access)
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