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Magnetic Heat Capacity of Stage 2 Graphite-Coc12

Published online by Cambridge University Press:  15 February 2011

M. Shayegan ,
L. Salamanca-Riba ,
J. Heremans ,
G. Dresselhaus  and
J-P. Issi
M. Shayegan
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139, USA
L. Salamanca-Riba
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139, USA
J. Heremans
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139, USA
G. Dresselhaus
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139, USA
J-P. Issi
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Abstract

The heat capacity Cp of graphite-CoC12 (stage 2) is measured at zero and high (up to 14 T) magnetic fields (H applied in-plane). By suppressing the magnetic contribution to Cp at the highest fields, we are able to decompose Cp into its electronic, lattice, and magnetic contributions. The magnetic heat capacity CM is seen to have a broad peak at ⋍ 9.1 K. The shape of this peak is consistent with the reported Monte Carlo calculations of CM based on a twodimensional xy model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 20: Symposium H – Intercalated Graphite , 1982 , 213
Copyright
Copyright © Materials Research Society 1983

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References

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