Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Extraordinary temperature dependence of isochoric thermal conductivity of crystalline CO₂ doped with inert gases
Репозиторій DSpace/Manakin
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Extraordinary temperature dependence of isochoric thermal conductivity of crystalline CO₂ doped with inert gases
Тема:
Cryocrystals
Інший ID:
PACS: 66.70.+f, 63.20.Ls
Посилання:
Extraordinary temperature dependence of isochoric thermal conductivity of crystalline CO₂ doped with inert gases / V.A. Konstantinov, V.G. Manzhelii, V.P. Revyakin, V.V. Sagan // Физика низких температур. — 2006. — Т. 32, № 11. — С. 1414–1416. — Бібліогр.: 9 назв. — англ.
Підтримка:
This study was supported by the Ukrainian Ministry
of Education and Science, Project Ф7/286-2001
«Novel quantum and anharmonic effects in mixtures
of cryocrystals».
Дата:
2006
Переглядів:
820
Завантажень:
461
Анотація:
The isochoric thermal conductivities of solid (CO₂)₀,₉₀₅Kr₀,₀₉₅ and (CO2)₁₋xXex(x = 0.052 and
0.097) solution of different densities was investigated in the temperature interval from 150 K to
the onset of melting. An unusual effect of point defects on the thermal conductivity has been detected.
In pure CO₂ at T >150 K the isochoric thermal conductivity decreases smoothly with increasing
temperature. In contrast, the thermal conductivity of solid CO₂/Kr and CO₂/Xe solutions
first decreases passing through a minimum at 200–210 K and then starts to increase with
temperature up to the onset of melting. This behavior of the isochoric thermal conductivity is attributed
to the rotation of the CO₂ molecules which gains more freedom as the spherically symmetrical
inert gas atoms dissolve in CO₂.
