Low Temperature Physics: 37, 420 (2011); https://doi.org/10.1063/1.3604519 (4 pages)
Физика Низких Температур: Том 37, Выпуск 5 (Май 2011), c. 531-534    ( к оглавлению , назад )

Isochoric thermal conductivity of solid n-alkanes:hexane C6H14

V.A. Konstantinov, V.P. Revyakin, and V.V. Sagan

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
E-mail: konstantinov@ilt.kharkov.ua

Received December 10, 2010


The isochoric thermal conductivity of solid n-hexane C6H14 has been investigated on three samples of different density in the temperature interval from 100 K to the onset of melting. In all the cases the isochoric thermal conductivity varied following a dependence which is weaker than Λ µ 1/Т. The results obtained are compared with the thermal conductivities of other representatives of n-alkanes. The contributions of low-frequency phonons and “diffuse modes” to the thermal conductivity are calculated.

PACS: 66.70.–f Nonelectronic thermal conduction and heat-pulse propagation in solids; thermal waves.

Key words: n-alkanes, hexane, isochoric thermal conductivity, phonons, “diffusive” modes.