CHARGE-TRANSFER EXCITATIONS AND SUPERCONDUCTIVITY IN IONIC METALS (REPRINTED FROM SOLID-STATE COMMUN, VOL 62, PG 681-685, 1987)

Authors
VARMA CM SCHMITTRINK S ABRAHAMS E
Citation
Cm. Varma et al., CHARGE-TRANSFER EXCITATIONS AND SUPERCONDUCTIVITY IN IONIC METALS (REPRINTED FROM SOLID-STATE COMMUN, VOL 62, PG 681-685, 1987), Solid state communications, 88(11-12), 1993, pp. 847-851
Citations number
36
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
88
Issue
11-12
Year of publication
1993
Pages
847 - 851
Database
ISI
SICI code
0038-1098(1993)88:11-12<847:CEASII>2.0.ZU;2-0
Abstract
The newly discovered high T(c) oxide metals have a low enough electron density that the charge transfer excitations between the nearest neig hbor cations and anions are unscreened. Excitonic resonances with larg e oscillator strengths are then possible. It is suggested that the hig h T(c) is due to scattering of electrons from such resonances rather t han from phonons.