FROM WEAKLY TO STRONGLY CORRELATED ELECTRONS IN THE ALKALI FULLERIDE FAMILY

Authors
VICTOROFF W HERITIER M
Citation
W. Victoroff et M. Heritier, FROM WEAKLY TO STRONGLY CORRELATED ELECTRONS IN THE ALKALI FULLERIDE FAMILY, Journal de physique. I, 6(12), 1996, pp. 2175-2180
Citations number
15
Categorie Soggetti
Physics
Journal title
Journal de physique. I → ACNP
ISSN journal
11554304
Volume
6
Issue
12
Year of publication
1996
Pages
2175 - 2180
Database
ISI
SICI code
1155-4304(1996)6:12<2175:FWTSCE>2.0.ZU;2-H
Abstract
We discuss the effect of strong electron-vibron interaction and static or dynamic Jahn-Teller distortion on the electronic properties of the A(n)C(60) family, where A is alkali metal and 0 less than or equal to n less than or equal to 6. Repulsive electron-electron correlations a re expected for even n, but attractive ones for odd n. Such a model se ems able to make compatible weak electron correlations for n = 3, fair ly strong correlations for n = 1 and an insulating behavior for n = 2 or 4.