Skip to main content
Article
Collective Excitations in an Asymmetrically Spin-Polarized Quantum Well
Physical Review B
  • D C Marinescu, Clemson University
  • J J Quinn, University of Tennessee
Document Type
Article
Publication Date
11-15-1998
Publisher
The American Physical Society
Abstract
We present a phenomenological picture for the many-body excitations of a two-dimensional electron gas in a quantum well spin polarized by a dc magnetic field at an angle ␪ with the axis of the well. In the framework of the Landau theory of charged Fermi liquids, we determine the frequencies of collective modes by solving a transport equation for quasiparticles in the local electromagnetic field associated with the charge- and spin-density fluctuations. In the long-wavelength limit, analytic solutions for ␻(qជ) are obtained as functions of the degree of spin polarization and of the angle ␪.
Comments
Published version may be found here: http://journals.aps.org/prb/
Citation Information
Please use publisher's recommended citation.