Acoustic Phonon Thermal Transport through a Nanostructure

Chin. Phys. Lett.

2006, Vol. 23

Issue (9): 2522-2525 DOI:

Original Articles

Acoustic Phonon Thermal Transport through a Nanostructure

LI Wen-Xia;LIU Tian-Yu;LIU Chang-Long

Department of Applied Physics, Tianjin University, Tianjin 300072

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LI Wen-Xia, LIU Tian-Yu, LIU Chang-Long 2006 Chin. Phys. Lett. 23 2522-2525

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Abstract Using the scattering matrix method, we investigate the thermal transport in a nanostructure at low temperatures. It is found that phonon transport exhibits some novel and interesting features: resonant transmission, resonant reflection, and small thermal conductance. A comparison between thermal conductances is performed when stress-free and hard-wall boundary conditions are applied for acoustic modes, respectively. The result indicates that the characteristics of the thermal conductance versus temperature for different types of boundary conditions are qualitatively different.

Keywords: 63.22.+m 44.10.+i 73.23.Ad

Published: 01 September 2006

PACS:	63.22.+m
	44.10.+i	(Heat conduction)
	73.23.Ad	(Ballistic transport)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2006/V23/I9/02522

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