Low-temperature phonon thermal conductivity of point-contacts
A. G. ShkorbatovB. I. Verkin Physicotechnical Institute of Low Temperatures, Ukrainian Academy of Sciences, 310164 KharkovT. Z. SarkisyantsB. I. Verkin Physicotechnical Institute of Low Temperatures, Ukrainian Academy of Sciences, 310164 KharkovA. FehérP. J. Safaric University, 04353 Kosice, SlovakiaP. StefányiP. J. Safaric University, 04353 Kosice, Slovakia
ABI
Аннотация
The contribution of diffraction effects to the phonon thermal conductivity of point contacts is calculated. It is shown that a formula analogous to the Landauer formula for electron conductivity holds for the thermal conductivity of the contacts, but the manifestation of diffraction effects depends considerably on the conditions of interaction of elastic waves with the metal surface.
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