Photon-mediated thermal relaxation of electrons in nanostructures

被引：111

作者：

Schmidt, DR ^{[1
]}

Schoelkopf, RJ

Cleland, AN

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Yale Univ, Dept Phys & Appl Phys, New Haven, CT 06520 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.93.045901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Measurements of the thermal properties of nanoscale electron systems have ignored the effect of electrical noise radiated between the electron gas and the environment, through the electrical leads. Here we calculate the effect of this photon-mediated process, and show that the low-temperature thermal conductance is equal to the quantum of thermal conductance, G(Q)=pi(2)k(B)(2)T/3h, times a coupling coefficient. We find that, at very low temperatures, the photon conductance is the dominant route for thermal equilibration, while at moderate temperatures this relaxation mode adds one quantum of thermal conductance to that due to phonon transport.

引用

页码：045901 / 1

页数：4

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