Compressibility of a two-dimensional electron gas in a parallel magnetic field


Subasi A. L. , Tanatar B.

SOLID STATE COMMUNICATIONS, vol.144, no.12, pp.521-523, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 144 Issue: 12
  • Publication Date: 2007
  • Doi Number: 10.1016/j.ssc.2007.03.056
  • Title of Journal : SOLID STATE COMMUNICATIONS
  • Page Numbers: pp.521-523

Abstract

The thermodynamic compressibility of a two-dimensional electron system in the presence of an in-plane magnetic field is calculated. We use accurate correlation energy results from quantum Monte Carlo simulations to construct the ground state energy and obtain the critical magnetic field Be required to fully spin polarize the system. Inverse compressibility as a function of density shows a kink-like behavior in the presence of an applied magnetic field, which can be identified as B-c. Our calculations suggest an alternative approach to transport measurements of determining full spin polarization. (c) 2007 Elsevier Ltd. All rights reserved.