Accession Number:

ADP013222

Title:

Spin-Orbit Interaction in AlGaAs/GaAs P-Type Quantum Wells - A Possible Explanation of the "Metal-Insulator" Transition Observed in Two-Dimensional Hole Systems

Descriptive Note:

Conference proceedings

Corporate Author:

RUSSIAN ACADEMY OF SCIENCES SAINT PETERSBURG IOFFE PHYSICAL-TECHNICAL INST

Personal Author(s):

Report Date:

2001-06-01

Pagination or Media Count:

3.0

Abstract:

We have performed a calculation of the temperature dependence of the weak-localization correction to resistance in a AlGaAsGaAs p-type quantum well. In such systems where the spin orbit coupling by far dominates the energy dispersion, we find that the spin relaxation time becomes comparable with the estimated value of the phase coherence time at sufficiently low temperatures and low hole densities. We wish to suggest this crossover between these different relaxation times as a possible explanation of the experimentally observed metal-insulator transition in two- dimensional hole systems.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE