Collective excitations and instabilities in double-wire electron-hole systems
Date
1997Source Title
Journal of Physics Condensed Matter
Print ISSN
0953-8984
Publisher
Institute of Physics Publishing Ltd.
Volume
9
Issue
45
Pages
9819 - 9828
Language
English
Type
ArticleItem Usage Stats
214
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Abstract
We investigate the collective excitations in a double-wire system of spatially separated electrons and holes. Self-consistent local-field factors are used to describe the exchange-correlation effects at low densities. Plasmon dispersions and the dynamic structure factor S(q, w) are studied. Charge-density-wave instabilities in these structures are examined within the linear response theory at small and finite q-values.