Multimode quantized thermal conductance tuned by external field in a quantum wire

被引：5
作者：
Cao, L. S.
Peng, R. W. [1 ]
Wang, Mu
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 01期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1063/1.2956673
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this work, we propose an approach to realize field-dependent multimode quantized thermal conductance by introducing both harmonic and anharmonic couplings to a quantum wire. It is demonstrated theoretically that by stretching (or compressing) the wire, phononic band structures are tuned and multiple phononic channels are opened one by one. In this way, multiple-step quantized thermal conductance is realized. The. research opens a way to manipulate heat transfer in mesoscopic phonon systems. (c) 2008 American Institute of Physics.
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页数：3
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