Excitonic collective mode and negative compressibility in electron liquids
Journal of Superconductivity, ISSN: 0896-1107, Vol: 18, Issue: 5-6, Page: 785-789
2006
- 8Citations
- 3Captures
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Conference Paper Description
A highly self-consistent theory maintaining the exact functional relations between the electron self-energy and the vertex part is employed to calculate the dielectric function ε(q ω) very accurately in the homogeneous electron gas in two- and three-dimensions. By investigating the full dynamical properties of ε(q ω) thus obtained, we find that the softening of excitonic collective modes is responsible for making the compressibility of the system negative at sufficiently low densities. © 2005 Springer Science+Business Media, Inc.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33744517032&origin=inward; http://dx.doi.org/10.1007/s10948-005-0081-3; http://link.springer.com/10.1007/s10948-005-0081-3; http://link.springer.com/content/pdf/10.1007/s10948-005-0081-3; http://link.springer.com/content/pdf/10.1007/s10948-005-0081-3.pdf; http://link.springer.com/article/10.1007/s10948-005-0081-3/fulltext.html; http://www.springerlink.com/index/10.1007/s10948-005-0081-3; http://www.springerlink.com/index/pdf/10.1007/s10948-005-0081-3; https://dx.doi.org/10.1007/s10948-005-0081-3; https://link.springer.com/article/10.1007/s10948-005-0081-3
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