DIRECT MANIFESTATION OF THE FERMI PRESSURE IN A 2-DIMENSIONAL ELECTRON-SYSTEM

Authors
NEHLS J SCHMIDT T MERKT U HEITMANN D NORMAN AG STRADLING RA
Citation
J. Nehls et al., DIRECT MANIFESTATION OF THE FERMI PRESSURE IN A 2-DIMENSIONAL ELECTRON-SYSTEM, Physical review. B, Condensed matter, 54(11), 1996, pp. 7651-7653
Citations number
13
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
11
Year of publication
1996
Pages
7651 - 7653
Database
ISI
SICI code
0163-1829(1996)54:11<7651:DMOTFP>2.0.ZU;2-P
Abstract
We have measured the dispersion of magnetoplasmons in high-density InA s/GaSb quantum wells. At zero magnetic field we find an offset 3/4 nu( F)(2)q(2) (q is the plasmon wave vector, nu(F) is the Fermi velocity) with respect to the local plasmon frequency which is a direct manifest ation of the Fermi pressure in a two-dimensional electron system.