Direct observation of a quasiparticle band in CeIrIn5 : An angle-resolved photoemission spectroscopy study
Physical Review B - Condensed Matter and Materials Physics Volume 73 Issue 22
Page 224517-1-224517-5
published_at 2006-06-20
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| File | |
| Title ( eng ) |
Direct observation of a quasiparticle band in CeIrIn5 : An angle-resolved photoemission spectroscopy study
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| Creator |
Fujimori Shin-ichi
Fujimori Atsushi
Narimura Takamasa
Kobayashi Kenichi
Harima Hisatomo
Shishido Hiroaki
Ikeda Shugo
Aoki Dai
Tokiwa Yoshifumi
Haga Yoshinori
Ōnuki Yoshichika
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| Source Title |
Physical Review B - Condensed Matter and Materials Physics
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| Volume | 73 |
| Issue | 22 |
| Start Page | 224517-1 |
| End Page | 224517-5 |
| 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.
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| Keywords |
quasiparticles
cerium alloys
iridium alloys
indium alloys
photoelectron spectra
heavy fermion superconductors
localised states
band structure
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2006-06-20 |
| Rights |
Copyright (c) 2006 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0163-1829
[DOI] 10.1103/PhysRevB.73.224517
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.73.224517
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