Effect of electron-electron interactions on a two-dimensional electron gasin II-VIZnS0.06Se0.94/Zn0.8Cd0.2Se quantum wells

Authors
Lo, I Chen, SJ Tu, LW Mitchel, WC Tu, RC Su, YK
Citation
I. Lo et al., Effect of electron-electron interactions on a two-dimensional electron gasin II-VIZnS0.06Se0.94/Zn0.8Cd0.2Se quantum wells, PHYS REV B, 60(16), 1999, pp. R11281-R11284
Citations number
34
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
16
Year of publication
1999
Pages
R11281 - R11284
Database
ISI
SICI code
0163-1829(19991015)60:16<R11281:EOEIOA>2.0.ZU;2-P
Abstract
A magnetotransport study has been performed in II-VI ZnS0.06Se0.94 / Zn0.8C d0.2Se quantum wells. We observed the quantum effects of weak localization and electron-electron interactions on the two-dimensional electron gas in t he Zn0.8Cd0.2Se well. The effective mass of electrons in this highly correl ated system, determined from Shubnikov-de Haas measurements, exhibits a str ong magnetic field dependence: m*m(0) = 0.143 + 0.0027 B-2. The mass enhanc ement is attributed to the "dressing" of electrons by the many-particle eff ect due to electron-electron interactions. [S0163-1829(99)50540-7].