Low Temperature Physics: 33, 507 (2007); https://doi.org/10.1063/1.2746239 (4 pages)
Физика Низких Температур: Том 33, Выпуск 6-7 (Июнь 2007), c. 676-679    ( к оглавлению , назад )

The plateau effect in thermal conductivity of solid hydrogen with neon impurity

N.N. Zholonko

Cherkasy Bogdan Khmelnitski National University, 81 Blvd Shevchenko, Cherkasy 18031, Ukraine
E-mail: zholonko@yahoo.com

Received November 20, 2006


The thermal conductivity of solid hydrogen with 1–2 ppm Ne impurity was investigated in the temperature range 1.5–10 K on samples grown from the liquid phase at various growth rates. The result differ qualitatively from those obtained on samples grown from the gas phase: the thermal conductivity curve exhibited a dip in a broad plateau. The relaxation model is suggested to explain the effect supposedly due to linear impurity structures, arranged on dislocation lines. A comparison with the case of isolated neon atoms homogeneous distributed in the solid hydrogen is made.

PACS: 67.80.Gb Thermal properties;
PACS: 65.40.–b Thermal properties of crystalline solids.

Key words: thermal conductivity, solid hydrogen.