Novel mechanism of the negative thermal expansion of doped fullerite C60

Автор(и)

  • M.A. Strzhemechny B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
  • I.V. Legchenkova B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine

DOI (Low Temperature Physics):


https://doi.org/10.1063/1.3432243

Ключові слова:

fullerite, rare gas atoms, negative thermal expansion.

Анотація

A model for an atomic impurity in an octahedral void of fullerite C60 is suggested. The problem is solved in the spherical oscillator approximation, which is appropriate for the larger rare gas atoms. It is shown that such impurities can contribute to the negative thermal expansions at low temperatures and produce a Schottky-like maximum at higher temperatures.

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Опубліковано

2010-03-24

Як цитувати

(1)
M.A. Strzhemechny and I.V. Legchenkova, Novel mechanism of the negative thermal expansion of doped fullerite C60, Low Temp. Phys. 36, (2010) [Fiz. Nizk. Temp. 36, 470-473, (2010)] DOI: https://doi.org/10.1063/1.3432243.

Номер

Том 36 № 5 (2010)

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