Abstract

We have measured compressibility of a two-dimensional hole gas in p-GaAs/AlGaAs heterostructure, grown on a (100) surface, in the presence of a tilted magnetic field. It turns out that the parallel component of magnetic field affects neither the spin splitting nor the density of states. We conclude that: (a) g-factor in the parallel magnetic field is nearly zero in this system; and (b) the level of the disorder potential is not sensitive to the parallel component of the magnetic field.

Notes

Originally posted at http://arxiv.org/abs/cond-mat/0206068v1. Preprint of an article published in Physical Review B, v.67 no.8, 2003.

Keywords

two-dimensional hole gas, 2D hole gas, tilted magnetic field, strongly correlated electrons, p-GaAs/AlGaAs

Subject Categories

Magnetic fields, Electrons

Disciplines

Physics

Publication Date

2003

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