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Weak Localization Effects in Fluorineintercalated Graphite Fibers

Published online by Cambridge University Press:  26 February 2011

S.L. Di Vittorio ,
M.S. Dresselhaus ,
V. Bayot ,
L. Piraux ,
J-P. Issi ,
M. Endo  and
T. Nakajima
S.L. Di Vittorio
Affiliation:
Massachusetts Institute Of Technology, Cambridge, Massachusetts 02139
M.S. Dresselhaus
Affiliation:
Massachusetts Institute Of Technology, Cambridge, Massachusetts 02139
V. Bayot
Affiliation:
Universite Catholique de Louvain, Louvain-la-Neuve, Belgium
L. Piraux
Affiliation:
Universite Catholique de Louvain, Louvain-la-Neuve, Belgium
J-P. Issi
Affiliation:
Universite Catholique de Louvain, Louvain-la-Neuve, Belgium
M. Endo
Affiliation:
Shinshu University, Nagano380, Japan
T. Nakajima
Affiliation:
Kyoto University, Sakyo-Ku, Kyoto 606, Japan
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Abstract

The intercalation of fluorine into graphite introduces defects into the highly crystalline pristine fibers. These defectsare studied using temperature-dependent resistivity and magnetoresistance measurements. A logarithmic increase in resistivity at low temperature is observed, whereas the high temperature behavior is metallic. At weak magnetic fields and low temperatures, a negative magnetoresistance is observed, which becomes positive at high fields. These effects are explainedusing the two theories of weak localization and hole-hole interaction. In the light of TEM pictures of the microstructure of the fluorinated fibers, the origin of the defects in the intercalated fibers is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 209: Symposium K – Defects in Materials , 1990 , 329
Copyright
Copyright © Materials Research Society 1991

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References

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