Phys. Rev. Lett. 85, 4574–4577 (2000)Highly Anisotropic g-Factor of Two-Dimensional Hole SystemsReceived 10 April 2000; published in the issue dated 20 November 2000 Coupling the spin degree of freedom to the anisotropic orbital motion of two-dimensional (2D) hole systems gives rise to a highly anisotropic Zeeman splitting with respect to different orientations of an in-plane magnetic field B relative to the crystal axes. This mechanism has no analog in the bulk band structure. We obtain good, qualitative agreement between theory and experimental data, taken in GaAs 2D hole systems grown on (113) substrates, showing the anisotropic depopulation of the upper spin subband as a function of in-plane B. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.4574
DOI:
10.1103/PhysRevLett.85.4574
PACS:
71.70.Ej, 73.20.Dx
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