Negative thermal expansion of fullerite C60 at liquid helium temperatures

Автор(и)

  • A. N. Aleksandrovskii B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47, Lenin Ave. , 310164, Kharkov, Ukraine
  • V. B. Esel`son B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47, Lenin Ave. , 310164, Kharkov, Ukraine
  • V. G. Manzhelii B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47, Lenin Ave. , 310164, Kharkov, Ukraine
  • A. V. Soldatov 2Umea University, Department of Experimental Physics, 90187 Umea, Sweden
  • B. Sundqvist 2Umea University, Department of Experimental Physics, 90187 Umea, Sweden

DOI:

https://doi.org/10.1063/1.593498

Ключові слова:

PACS: 74.70.Wz

Анотація

The thermal expansion of fullerite C60 has been measured in the temperature range 2-9 K. A compacted fullerite sample with a diameter of about 6 mm and height of 2.4 mm was used. It was found that at temperatures below ~3.4 K the linear thermal expansion coefficient becomes negative. At temperatures above 5 K our results are in good agreement with the available literature data. A qualitative explanation of the results is proposed.

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Опубліковано

1997-11-10

Як цитувати

(1)
Aleksandrovskii, A. N.; Esel`son, V. B.; Manzhelii, V. G. M.; Soldatov, A. V.; Sundqvist, B. Negative Thermal Expansion of Fullerite C60 at Liquid Helium Temperatures. Fiz. Nizk. Temp. 1997, 23, 1256-1260.

Номер

Том 23 № 11 (1997)

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