Collective modes in a quasi-one-dimensional, two-component electron liquid

Date
1994
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Source Title
Solid State Communications
Print ISSN
0038-1098
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Publisher
Pergamon Press
Volume
92
Issue
8
Pages
699 - 702
Language
English
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Abstract

Under favorable conditions, a new collective mode besides the usual plasmons may exist in degenerate electron-hole liquids. We calculate the dispersion and damping of this new mode (called the acoustic plasmon mode) in a quasi-one-dimensional, two-component electron liquid. We carry out our calculations first within the random-phase approximation, then include the effects of local-field corrections using a Hubbard-like approximation. The latter decreases the acoustic plasmon dispersion. © 1994.

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