Spin Polarization of Quasi Two-Dimensional Hole Systems

Details Spin Polarization of Quasi Two-Dimensional Hole Systems Spin Polarization of Quasi Two-Dimensional Hole Systems

2004-01-06

arxiv.org/abs/cond-mat/0401067v1

Phys. Rev. B 71, 113307 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevB.71.113307

In quasi two-dimensional (2D) hole systems with an effective spin j=3/2, heavy hole-light hole splitting results in a quantization of angular momentum perpendicular to the 2D plane. The spin polarization of quasi 2D hole systems due to an in-plane magnetic field B thus competes with the heavy hole-light hole splitting. As a result, the spin polarization of hole systems is very different from the spin polarization of j=1/2 electron systems. In particular, it is shown that the spin polarization of quasi 2D heavy hole systems can change its sign at a finite value of B.

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