Many-body effective mass and spin susceptibility in a quasi-two-dimensional electron liquid

Date

2006

Editor(s)

Advisor

Supervisor

Co-Advisor

Co-Supervisor

Instructor

BUIR Usage Stats
0
views
20
downloads

Citation Stats

Attention Stats

Series

Abstract

We present numerical calculations of the effect of electron-electron interactions on the quasiparticle properties such as the effective mass and the Landé g -factor in a GaAs AlGaAs triangular quantum well from which the spin susceptibility is obtained. For this purpose, we consider quantum many-body effects associated with charge- and spin-density fluctuations induced many-body vertex corrections. The approach is based on the many-body local-field factors which are extracted from Fermi hypernetted-chain self-consistent calculation through the fluctuation-dissipation theorem. We find the spin susceptibility in good agreement with the recent experimental measurements and quantum Monte Carlo simulation data for such a system in the weak and intermediate coupling limits.

Source Title

Physical Review B - Condensed Matter and Materials Physics

Publisher

The American Physical Society

Course

Other identifiers

Book Title

Keywords

Degree Discipline

Degree Level

Degree Name

Citation

Published Version (Please cite this version)

Language

English