Hot electrons and energy transport in metals at millikelvin temperatures

Using a new technique, the energy-loss lifetime for electrons in a metal (Cu) from 25-320 mK was measured. Applying a small electric field, of the order of 1 mu V/cm at 25 mK, causes carriers to heat above the temp. of the phonon bath. The temp. difference induced reflects the rate of energy transpo...

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Bibliographic Details
Published in:Physical review letters 1985-07, Vol.55 (4), p.422-425
Main Authors: ROUKES, M. L, FREEMAN, M. R, GERMAIN, R. S, RICHARDSON, R. C, KETCHEN, M. B
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Electrical and thermal conduction in crystalline metals and alloys
Electronic conduction in metals and alloys
Electronic transport in condensed matter
Exact sciences and technology
Materials science
Metals, semimetals and alloys
Physics
Specific materials
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Summary:Using a new technique, the energy-loss lifetime for electrons in a metal (Cu) from 25-320 mK was measured. Applying a small electric field, of the order of 1 mu V/cm at 25 mK, causes carriers to heat above the temp. of the phonon bath. The temp. difference induced reflects the rate of energy transport between the electrons and lattice. The 1-ms energy-loss lifetime and 1-cm inelastic diffusion length measured at 25 mK are the largest ever obtained. 15 ref.--AA
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.55.422