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The Electronic Structures of Fullerene/Transition-Metal Hybrid Material

Published online by Cambridge University Press:  01 February 2011

Yoshihiro Matsumoto ,
Seiji Sakai ,
Hiroshi Naramoto ,
Norie Hirao ,
Yuji Baba ,
Isamu Sugai ,
Koki Takanashi ,
Toshihiro Shimada  and
Yoshihito Maeda
Yoshihiro Matsumoto
Affiliation:
[email protected], Japan Atomic Energy Agency, Advanced Science Research Center, Shirakata Shirane 2-4, Naka-gun Tokai-mura, 3191195, Japan
Seiji Sakai
Affiliation:
[email protected], Japan Atomic Energy Agency, Advanced Science Research Center, 2-4 Shirakata Shirane, Tokai, Naka, 319-1195, Japan
Hiroshi Naramoto
Affiliation:
[email protected], Japan Atomic Energy Agency, Advanced Science Research Center, 2-4 Shirakata Shirane, Tokai, Naka, 319-1195, Japan
Norie Hirao
Affiliation:
[email protected], Japan Atomic Energy Agency, Synchrotron Radiation Center, 2-4 Shirakata Shirane, Tokai, Naka, 319-1195, Japan
Yuji Baba
Affiliation:
[email protected], Japan Atomic Energy Agency, Synchrotron Radiation Center, 2-4 Shirakata Shirane, Tokai, Naka, 319-1195, Japan
Isamu Sugai
Affiliation:
[email protected], Tohoku University, Institute for Materials Research, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
Koki Takanashi
Affiliation:
[email protected], Japan Atomic Energy Agency, Advanced Science Research Center, 2-4 Shirakata Shirane, Tokai, Naka, 319-1195, Japan
Toshihiro Shimada
Affiliation:
[email protected], University of Tokyo, Department of Chemistry, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
Yoshihito Maeda
Affiliation:
[email protected], Japan Atomic Energy Agency, Advanced Science Research Center, 2-4 Shirakata Shirane, Tokai, Naka, 319-1195, Japan
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Abstract

Local electronic structures of C60-Co hybrid films have been studied by X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. XPS spectra of C 1s main and satellite peaks for the C60-Co films show binding-energy shifts and also line-broadening compared to those in a pure C60 film. In addition, XPS spectra in valence band region suggest an appearance of three new components at near Fermi level and HOMO level in the C60-Co film. These results are attributed to hybridizations between Co 3d band and C60 LUMO. The same effects have been observed in NEAXFS spectra at C 1s excitations.

Keywords

x-ray photoelectron spectroscopy (XPS)compositespintronic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1081: Symposium P – Carbon Nanotubes and Related Low-Dimensional Materials , 2008 , 1081-P07-01
Copyright
Copyright © Materials Research Society 2008

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References

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