Electron heating in metallic resistors at sub-Kelvin temperature - Condensed Matter > Mesoscale and Nanoscale PhysicsReportar como inadecuado




Electron heating in metallic resistors at sub-Kelvin temperature - Condensed Matter > Mesoscale and Nanoscale Physics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: In the presence of Joule heating, the electronic temperature in a metallicresistor placed at sub-Kelvin temperatures can significantly exceed the phonontemperature. Electron cooling proceeds mainly through two processes: electronicdiffusion to and from the connecting wires and electron-phonon coupling. Thegoal of this paper is to present a general solution of the problem, in a formthat can easily be used in practical situations. As an application, we computetwo quantities that depend on the electronic temperature profile: the secondand the third cumulant of the current noise at zero frequency, as a function ofthe voltage across the resistor. We also consider time dependent heating, anissue relevant for experiments in which current pulses are used, for instancein time-resolved calorimetry experiments.



Autor: B. Huard QUANTRONICS, H. Pothier QUANTRONICS, D. Esteve QUANTRONICS, K. E. Nagaev IRE

Fuente: https://arxiv.org/







Documentos relacionados