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Thermal Conductivity of C60 Under High Pressure

Published online by Cambridge University Press:  15 February 2011

O. Andersson ,
A. Soldatov  and
B. Sundqvist
O. Andersson
Affiliation:
Department of Experimental Physics, Umeå University, S-90187 Umeå, Sweden
B. Sundqvist
Affiliation:
Department of Experimental Physics, Umeå University, S-90187 Umeå, Sweden
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Abstract

We have measured the thermal conductivity λ of highly pure polycrystalline C60 in the range 50 to 300 K under pressures up to 1 GPa. The results are discussed in terms of the lattice structure and dynamics. In particular, we discuss the phase diagram as delineated by anomalies observed in λ and cp at the f c.c.-to-s.c. transition at 260 K and the glass transition at Tg = 90 K, and also the effect on λ of the orientational motion in the s.c. phase. The results are found to be compatible with p-T phase diagram recently suggested by us.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 359: Symposium G – Science and Technology of Fullerene Materials , 1994 , 549
Copyright
Copyright © Materials Research Society 1995

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