A QUANTITATIVE STUDY OF PINNING OF A 2D ELECTRON CRYSTAL IN HETEROJUNCTIONS

Authors
CHUI ST
Citation
St. Chui, A QUANTITATIVE STUDY OF PINNING OF A 2D ELECTRON CRYSTAL IN HETEROJUNCTIONS, Journal of physics. Condensed matter, 5(33), 1993, pp. 405-408
Citations number
24
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
5
Issue
33
Year of publication
1993
Pages
405 - 408
Database
ISI
SICI code
0953-8984(1993)5:33<405:AQSOPO>2.0.ZU;2-1
Abstract
We study numerically the relaxation and the pinning gap of a 2D electr on crystal in the presence of randomly distributed distant dopants. Ou r results agree with experiments and with analytic calculations based on a perturbation in the deviations of the particle positions deltar/a from the lattice positions. For parameters corresponding to the recen t experimental studies (d/a congruent-to 3), the relaxation is dominat ed by the longitudinal mode.