Highly anisotropic g-factor of two-dimensional hole systems

Details Highly anisotropic g-factor of two-dimensional hole systems Highly anisotropic g-factor of two-dimensional hole systems

2000-05-28

arxiv.org/abs/cond-mat/0005488v1

Phys. Rev. Lett. 85, 4574 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.85.4574

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 analogue 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.

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