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Low-temperature heat capacity of fullerite C₆₀ doped with nitrogen
Репозиторій DSpace/Manakin
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Low-temperature heat capacity of fullerite C₆₀ doped with nitrogen
Тема:
Кpаткие сообщения
Інший ID:
PACS: 74.70.Wz
Посилання:
Low-temperature heat capacity of fullerite C₆₀ doped with nitrogen / A.M. Gurevich, A.V. Terekhov, D.S. Kondrashev, A.V. Dolbin, D. Cassidy, G.E. Gadd, S. Moricca, B. Sundqvist // Физика низких температур. — 2006. — Т. 32, № 10. — С. 1275–1277. — Бібліогр.: 12 назв. — англ.
Підтримка:
We wish to thank V.G. Manzhelii and M.I. Bagatskii
for helpful participation in a discussion of the
results.
Дата:
2006
Переглядів:
713
Завантажень:
610
Анотація:
The heat capacity Cm of polycrystalline fullerite C₆₀ doped with nitrogen has been measured in
the temperature interval 2–13 K. The contributions to the heat capacity from translational lattice
vibrations (Debye contribution), orientational vibrations of the C₆₀ molecules (Einstein contribution),
and from the motion of the N₂ molecules in the octahedral cavities of the C₆₀ lattice have
been estimated. However, we could not find (beyond the experimental error limits) any indications
of the first-order phase transformation that had been detected earlier in the dilatometric investigation
of the orientational N₂–C₆₀ glass. A possible explanation of this fact is proposed.
