Compressibility of a two-dimensional hole gas in a tilted magnetic field

2002/06/06 by Maryam Rahimi, M. R. Sakr, S. V. Kravchenko +4 · 2 citations
Physics and Astronomy · #Quantum and electron transport phenomena #Quantum, superfluid, helium dynamics #Theoretical and Computational Physics #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.67.081302

published as Phys. Rev. B 67, 081302(R) (2003)

arxiv created 2002/06/06 · openalex publication_date 2003/02/06 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We have measured compressibility of a two-dimensional hole gas in p\ensuremath-GaAs/Al_xGa_1\ensuremath-xAs 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.

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