Quantum energy flow in mesoscopic dielectric structures

被引:157
作者
Blencowe, MP [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England
来源
PHYSICAL REVIEW B | 1999年 / 59卷 / 07期
关键词
D O I
10.1103/PhysRevB.59.4992
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigate the phononic energy-transport properties of mesoscopic, suspended dielectric wins. The Landauer formula for the thermal conductance is derived and its universal aspects discussed. We then determine the variance of the energy current in the presence of a steady-state current flow. In the final part, some initial results are presented concerning the nature of the temperature fluctuations of a mesoscopic electron-gas thermometer due to the absorption and emission of wire phonons. [S0163-1829(99)02707-1].
引用
收藏
页码:4992 / 4998
页数:7
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