Spectral weight redistribution in a layered 4d-electron superconductor Sr2RuO4

Authors
Inoue, IH Kimura, A Harasawa, A Kakizaki, A Aiura, Y Ikeda, S Maeno, Y
Citation
Ih. Inoue et al., Spectral weight redistribution in a layered 4d-electron superconductor Sr2RuO4, J PHYS CH S, 59(10-12), 1998, pp. 2205-2207
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN journal
00223697 → ACNP
Volume
59
Issue
10-12
Year of publication
1998
Pages
2205 - 2207
Database
ISI
SICI code
0022-3697(199810/12)59:10-12<2205:SWRIAL>2.0.ZU;2-
Abstract
The ultraviolet photoemission spectrum of a layered-perovskite superconduct or Sr2RuO4 around the Fermi level is considerably different from the densit y of states obtained by a band calculation based on the local density appro ximation. Although the significant spectral weight redistribution is consid ered to be evidence of the large electron correlation in this system, the e ffective mass is not so enhanced. A possible scenario to coordinate both th ese phenomena is discussed. (C) 1998 Elsevier Science Ltd. All rights reser ved.