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:
ID Code:
57051
Deposited By:
Deposited On:
03 Sep 2012 13:30
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Apr 2020 02:14