Thermal conductance in a two-slit quantum waveguide

doi:10.1088/1674-1056/21/2/026301

Abstract Using the scattering-matrix method, we investigate the thermal conductance in a two-slit quantum waveguide at low temperature. The results show that the total thermal conductance decreases monotonically with temperature increasing. Moreover, we find that the behaviours of the thermal conductance versus temperature are different for different types of slits.

Keywords: acoustic phonon transport thermal conductance quantum wire

Received: 21 May 2011
Revised: 30 August 2011
Accepted manuscript online:

PACS:	63.22.-m	(Phonons or vibrational states in low-dimensional structures and nanoscale materials)
	44.10.+i	(Heat conduction)
	73.23.Ad	(Ballistic transport)

Fund: Project supported by the Natural Science Foundation of Hunan Province of China (Grant No. 09JJ5005) and the National Natural Science Foundation of China (Grant Nos. 10947134 and 11004017).

Corresponding Authors: Nie Liu-Ying,nieliuying@163.com
E-mail: nieliuying@163.com

Cite this article:

Nie Liu-Ying(聂六英), Li Chun-Xian(李春先), Zhou Xiao-Ping(周晓萍), Wang Cheng-Zhi(王成志), and Cheng Fang(程芳) Thermal conductance in a two-slit quantum waveguide 2012 Chin. Phys. B 21 026301

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