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Many-Body Effects for Bound States in the Quasi-One-Dimensional Electron Gas: Effects of the Valley Degeneracy

✍ Scribed by L. Calmels; A. Gold

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 160 KB
Volume: 210
Category: Article
ISSN: 0370-1972
DOI: 10.1002/(sici)1521-3951(199812)210:2<609::aid-pssb609>3.0.co;2-h

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✦ Synopsis

We study the effects of screening on the binding energy of positively and negatively charged impurities in the quasi-one-dimensional electron gas. We assume a parabolic confinement for the electron gas. Many-body effects beyond the random-phase approximation and the valley degeneracy are taken into account in the screening function. Our results should apply to Si/Si 1Àx Ge x quantum wires.

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