Search for the minimum thermal conductivity in mixed cryocrystals (CH4)1-x Krx

Статьи, посвященные столетию со дня рождения Л. В. Шубникова

Автор(и)

  • V. A. Konstantinov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin ave., Kharkov, 63103, Ukraine
  • V. G. Manzhelii B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin ave., Kharkov, 63103, Ukraine
  • V. P. Revyakin B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin ave., Kharkov, 63103, Ukraine
  • R. O. Pohl Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York, USA

Ключові слова:

PACS: 66.70. f, 63.20.Ls, 63.20.Hp

Анотація

The isochoric thermal conductivity of (CH4)1-x Krx solid solutions is studied between 40 K and ~ 150 K over the wide range of concentrations (x = 0.013, 0.032, 0.07, 0.115, 0.34, 0.71, 0.855, 0.937, and 0.97). A gradual transition from the thermal conductivity of a highly perfect crystal to the minimum thermal conductivity is observed as the crystal becomes increasingly more disordered. A qualitative description is given in the framework of Debye model of thermal conductivity, which takes into consideration the fact that phonon mean free path cannot decrease indefinitely.

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Опубліковано

2001-10-10

Як цитувати

(1)
Konstantinov, V. A.; Manzhelii, V. G.; Revyakin, V. P.; Pohl, R. O. Search for the Minimum Thermal Conductivity in Mixed Cryocrystals (CH4)1-x Krx: Статьи, посвященные столетию со дня рождения Л. В. Шубникова. Fiz. Nizk. Temp. 2001, 27, 1159-1169.

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