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ID 19347
file
creator
Fujimori, Shin-ichi
Fujimori, Atsushi
Narimura, Takamasa
Kobayashi, Kenichi
Harima, Hisatomo
Shishido, Hiroaki
Ikeda, Shugo
Aoki, Dai
Tokiwa, Yoshifumi
Haga, Yoshinori
Ōnuki, Yoshichika
subject
quasiparticles
cerium alloys
iridium alloys
indium alloys
photoelectron spectra
heavy fermion superconductors
localised states
band structure
abstract
We have performed a high-resolution angle-resolved Ce 4d-4f resonant photoemission experiment on the heavy fermion superconductor CeIr In5. We have observed a quasiparticle band, which has an energy dispersion of ∼30 meV in the Ce 4f on-resonance spectra. The result suggests that although the 4f spectra are dominated by the localized and/or correlated character, the small itinerant component is responsible for the superconductivity in this compound.
journal title
Physical Review B - Condensed Matter and Materials Physics
volume
Volume 73
issue
Issue 22
start page
224517-1
end page
224517-5
date of issued
2006-06-20
publisher
American Physical Society
issn
0163-1829
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2006 The American Physical Society.
relation url
department
Graduate School of Science
Hiroshima Synchrotron Radiation Center