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Low temperature heat capacity of fullerite C60 doped with nitrogen
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2006 (English)In: Low Temperature Physics, ISSN 1063-777X, Vol. 32, no 10, 967-969 p.Article in journal (Refereed) Published
Abstract [en]

The heat capacity C-m of polycrystalline fullerite C-60 doped with nitrogen is measured in the temperature interval 2-13 K. The contributions to the heat capacity from translational lattice vibrations (Debyc contribution), from orientational vibrations of the C-60 molecules (Einstein contribution), and from the motion of the N-2 molecules in the octahedral cavities of the C-60 lattice are estimated. However, no indications of the first-order phase transformation detected earlier in a dilatometric investigation of the N-2-C-60 orientational glass are found (beyond the experimental error limits). A possible explanation for this fact is proposed.

Place, publisher, year, edition, pages
2006. Vol. 32, no 10, 967-969 p.
Keyword [en]
C60, fullerenes, nitrogen, intercalation compound, exohedral, specific heat capacity
National Category
Condensed Matter Physics
URN: urn:nbn:se:umu:diva-12453DOI: doi:10.1063/1.2364490OAI: diva2:152124
Simultaneous publication in Fizika Nizhkikh Temperatur vol. 32 p. 1275-7 (2006)Available from: 2007-11-28 Created: 2007-11-28 Last updated: 2011-01-11Bibliographically approved

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Sundqvist, Bertil
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Condensed Matter Physics

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