Vertical g factor of hole quantum wires

Gelabert, M. Magdalena; Serra, Llorenç
Physica Scripta T151, 014051 (1-3) (2012)

We present calculations of the g factors of hole quantum wires for a magnetic field in the vertical (growth) direction. The energy bands are symmetric with respect to wavenumber inversion and the obtained g factors are larger than those for in-plane fields. For high-enough wire deformations, the g-factors are quenched when the Rashba interaction is increased.
A Rashba-induced anisotropy similar to the horizontal one is thus predicted. A simple perturbative model explains qualitatively the numerical results.

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