Phonon-mediated thermal conductance of mesoscopic wires with rough edges

Kambili, A and Fagas, G and Falko, Vladimir and Lambert, C J (1999) Phonon-mediated thermal conductance of mesoscopic wires with rough edges. Physical review B, 60 (23). pp. 15593-15596. ISSN 0163-1829

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Abstract

We present an analysis of acoustic-phonon propagation through long, free-standing, insulating wires with rough surfaces. Owing to a crossover from ballistic propagation of the lowest-frequency phonon mode at omega < omega(1) = pi c/W to a diffusive (or even localized) behavior upon;the increase of phonon frequency, followed by reentrance into the quasiballistic regime, the heat conductance:of a wire acquires an intermediate tendency to saturate within the temperature range T similar to (h) over bar omega(1)/k(B). [S0163- 1829(99)02543-6].

Item Type: Journal Article
Journal or Publication Title: Physical review B
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 57051
Deposited By: ep_importer_pure
Deposited On: 03 Sep 2012 13:30
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 08:04
URI: https://eprints.lancs.ac.uk/id/eprint/57051

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