Volume 2, Issue 1
Acoustic Phonon Transmission and Thermal Conductance in a Three-Stub Quantum Waveguide

Jian-Hua Zhang

J. At. Mol. Sci., 2 (2011), pp. 65-73.

Published online: 2011-02

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  • Abstract

Using the scattering matrix method, we investigate the acoustic phonon transmission and thermal conductance in a quantum waveguide with three stubs at low temperature. It is found that transmission coefficient shows periodic feature and the number of cutoff frequency bands increases with increasing of height h; and the thermal conductance exhibits oscillatory decaying behavior with increasing of the widths between any two stubs; In addition, thermal conductance is sensitive to the width and height of stubs; The results show that changing the geometric parameters of the stubs could provide an efficient way to control the thermal conductance of the proposed micro-structures artificially.

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COPYRIGHT: © Global Science Press

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zhangjianhua6846991@126.com (Jian-Hua Zhang)

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@Article{JAMS-2-65, author = {Zhang , Jian-Hua}, title = {Acoustic Phonon Transmission and Thermal Conductance in a Three-Stub Quantum Waveguide}, journal = {Journal of Atomic and Molecular Sciences}, year = {2011}, volume = {2}, number = {1}, pages = {65--73}, abstract = {

Using the scattering matrix method, we investigate the acoustic phonon transmission and thermal conductance in a quantum waveguide with three stubs at low temperature. It is found that transmission coefficient shows periodic feature and the number of cutoff frequency bands increases with increasing of height h; and the thermal conductance exhibits oscillatory decaying behavior with increasing of the widths between any two stubs; In addition, thermal conductance is sensitive to the width and height of stubs; The results show that changing the geometric parameters of the stubs could provide an efficient way to control the thermal conductance of the proposed micro-structures artificially.

}, issn = {2079-7346}, doi = {https://doi.org/10.4208/jams.102110.111410a}, url = {http://global-sci.org/intro/article_detail/jams/8105.html} }
TY - JOUR T1 - Acoustic Phonon Transmission and Thermal Conductance in a Three-Stub Quantum Waveguide AU - Zhang , Jian-Hua JO - Journal of Atomic and Molecular Sciences VL - 1 SP - 65 EP - 73 PY - 2011 DA - 2011/02 SN - 2 DO - http://doi.org/10.4208/jams.102110.111410a UR - https://global-sci.org/intro/article_detail/jams/8105.html KW - T-shaped quantum waveguide, scattering matrix method, acoustic transmission coefficient, thermal conductance. AB -

Using the scattering matrix method, we investigate the acoustic phonon transmission and thermal conductance in a quantum waveguide with three stubs at low temperature. It is found that transmission coefficient shows periodic feature and the number of cutoff frequency bands increases with increasing of height h; and the thermal conductance exhibits oscillatory decaying behavior with increasing of the widths between any two stubs; In addition, thermal conductance is sensitive to the width and height of stubs; The results show that changing the geometric parameters of the stubs could provide an efficient way to control the thermal conductance of the proposed micro-structures artificially.

Zhang , Jian-Hua. (2011). Acoustic Phonon Transmission and Thermal Conductance in a Three-Stub Quantum Waveguide. Journal of Atomic and Molecular Sciences. 2 (1). 65-73. doi:10.4208/jams.102110.111410a
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