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ID 48847
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Author
Okazaki, Hiroyuki
Yoshida, Rikiya
Iwai, Keisuke
Noami, Kengo
Muro, Takayuki
Nakamura, Tetsuya
Wakita, Takanori
Hirai, Masaaki
Tomioka, Fumiaki
Takano, Yoshihiko
Takenaka, Asami
Toyoda, Masahiro
Oguch, Tamio
Abstract
In this work, we have performed resonant photoemission studies of Ca-intercalated graphite superconductor CaC6. Using photon energy of the Ca 2p-3d threshold, the photoemission intensity of the peak at Fermi energy (E-F) is resonantly enhanced. This result provides spectroscopic evidence for the existence of Ca 3d states at E-F, and strongly supports that Ca 3d state plays a crucial role for the superconductivity of this material with relatively high T-c.
Published Date
2010-12
Publication Title
Physica C-Superconductivity and its Applications
Volume
volume470
Issue
issueS1
Publisher
Elsevier
Start Page
S637
End Page
S638
ISSN
0921-4534
NCID
AA11461984
Content Type
Journal Article
Project
Research Center of New Functional Materials for Energy Production, Storage, and Transport
Official Url
http://www.sciencedirect.com/science/article/pii/S0921453409005978
language
英語
Copyright Holders
Copyright © 2009 Elsevier B.V. All rights reserved.
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author
Refereed
True
DOI
Web of Sience KeyUT