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

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.

References in corpus (10)

• Metallic behavior and related phenomena in two dimensions
• Metal-insulator transition at B=0 in a dilute two dimensional GaAs-AlGaAs hole gas
• Percolation-type description of the metal-insulator transition in two dimensions
• On the Theory of Metal-Insulator Transitions in Gated Semiconductors
• Unexpected Behavior of the Local Compressibility Near the B=0 Metal-Insulator Transition
• Parallel Magnetic Field Induced Transition in Transport in the Dilute Two-Dimensional Hole System in GaAs
• Parallel magnetic field induced giant magnetoresistance in low density {\it quasi}-two dimensional layers
• Thermodynamic Signature of a Two-Dimensional Metal-Insulator Transition
• Highly anisotropic g-factor of two-dimensional hole systems
• Metal-Insulator Transition of Disordered Interacting Electrons

Cited by in corpus (7)

• Thermodynamic density of states of two-dimensional GaAs systems near the apparent metal-insulator transition
• Spin blockade as a probe of Zeeman interactions in hole quantum dots
• Anisotropic modification of the effective hole $g$-factor by electrostatic confinement
• Magnetotransport in C-doped AlGaAs heterostructures
• Compressibility, zero sound, and effective mass of a fermionic dipolar gas at finite temperature
• Physics of the Insulating Phase in the Dilute Two-Dimensional Electron Gas
• g-Factor anisotropy of hole quantum wires induced by the Rashba interaction