ELECTRONS, EXCITONS AND INSULATOR-METAL PHASE-TRANSITION IN A(4)C(60)AND A(2)C(60)

Authors
KIROVA N BRAZOVSKII S RACHDI F
Citation
N. Kirova et al., ELECTRONS, EXCITONS AND INSULATOR-METAL PHASE-TRANSITION IN A(4)C(60)AND A(2)C(60), Synthetic metals, 86(1-3), 1997, pp. 2385-2386
Citations number
7
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
86
Issue
1-3
Year of publication
1997
Pages
2385 - 2386
Database
ISI
SICI code
0379-6779(1997)86:1-3<2385:EEAIPI>2.0.ZU;2-J
Abstract
We consider the possibility for the coexistence of band electrons and local excitations in A(4)C(60) and A(2)C(60) keeping in mind the Jahn- Teller ground state of the isolated C-60(n-) molecule. It appears that there is a large room of temperatures and band overlap, where the Jah n-Teller effect in the crystalline phase (although being screened by t he free carriers) still exist, providing the insulating behavior of th e materials.