Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Resonance absorption, reflection, transmission of phonons and heat transfer through interface between two solids
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Resonance absorption, reflection, transmission of phonons and heat transfer through interface between two solids
Тема:
Динамика кристаллической решетки
Інший ID:
PACS: 63.20.–e
Посилання:
Resonance absorption, reflection, transmission
of phonons and heat transfer through interface between
two solids / Yu.A. Kosevich, A. Feher, E.S. Syrkin
// Физика низких температур. — 2008. — Т. 34, № 7. — С. 725–733. — Бібліогр.: 32 назв. — англ.
Підтримка:
This paper is dedicated to the late Professor Arnold
Markovich Kosevich in grateful recollection by one of the
authors (A. Feher) of years of gratifying collaboration.
Arnold Markovich was the teacher in theoretical physics
and excellent mediator of different physical problems for
the Koœice Low Temperature Group.
Yu.A.K. acknowledges the support from the Russian
Foundation for Basic Research (Grant No. 08-03-00420).
A.F. is indebted to A. Orendáèová and M. Orendáè for
helpful discussions and suggestions concerning low dimensional
magnets.
E.S.S. has performed part of his work in Koœice at the
P.J. Sáfárik University (Slovakia), under the contract
No. 20-005204 with the Science and Technology Assistance
Agency. Material support of the U.S. Steel DZ Energetika is
gratefully acknowledged.
Yu.A.K. and E.S.S. acknowledge also discussions with
L.G. Potyomina.
Дата:
2008
Переглядів:
793
Завантажень:
734
Анотація:
The different mechanisms of resonant transport of phonons between two media in the presence of impurity
intermediate layer are described. Particular attention is focused on the resonance interaction of elastic
waves with a two-dimensional defect on the contact boundary between two solids, on the multichannel interface
phonon scattering and on the experimentally observed nonmonotonic temperature dependence of the reduced
heat flux. In the cases when there is a direct interaction between edge atoms of the matrix as non-nearest
neighbors or when the impurities do not fill completely the 2D interface layer, the additional channel for
the transmission of phonons through the interface opens. This additional transmission channel manifests itself
as a transmission (or reflection or absorption) peak with an asymmetric line shape (the so-called Fano
resonance for phonons due to interference between the two transmission channels). Some applications of the
Fano effect in magnon heat conductivity are also discussed.
