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Photoemission Study of Single Crystal C60

Published online by Cambridge University Press:  25 February 2011

J. Wu ,
Z.-X. Shen ,
D. S. Dessau ,
R. Cao ,
D. S. Marshall ,
P. Pianetfa ,
I. Lindau ,
X. Yang ,
J. Terry  and
D. M. King
...Show all authors
J. Wu
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
Z.-X. Shen
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
D. S. Dessau
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
R. Cao
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
D. S. Marshall
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
P. Pianetfa
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
I. Lindau
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
X. Yang
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
J. Terry
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
D. M. King
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
B. O. Wells
Affiliation:
Stanford Synchrotron Radiation Laboratory and Stanford Electronics Laboratories, Stanford, CA 94309
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Abstract

We report angle-resolved photoemission data from single crystals of C60 cleaved in UHV. Unlike the other forms of pure carbon, the valence band spectrum of C60 consists of many sharp features that can be essentially accounted for by the quantum chemical calculations describing individual molecules. This suggests that the electronic structure of solid C60 is mainly determined by the bonding interactions within the individual molecules. We also observe remarkable intensity modulations of the photoemission features as a function of photon energy, suggesting strong final state effects. Finally, we address the issue of the band width of the HOMO state of C60. We assert that the width of the photoemission peak of C60 does not reflectthe intrinsic band width.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 270: Symposium M – Novel Forms of Carbon , 1992 , 235
Copyright
Copyright © Materials Research Society 1992

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References

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