Electron-phonon relaxation in pure metals and superconductors at very low temperatures

Journal Article · Fri Sep 15 04:00:00 EDT 1989 · Physical Review (Section) B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.40.5411· OSTI ID:5504589

Reizer, M Y ^[1]

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1. Department of Applied Physics, Stanford University, Stanford, California 94305 (US)

The electron-phonon relaxation processes in pure metals and superconductors are considered at low temperatures when electrons interact with both longitudinal and transverse phonons. The screening of the electron-ion interaction is treated in a gauge-invariant form, so that both longitudinal and transverse electromagnetic fields are taken into consideration. The results obtained are applied to the analysis of the heating effect of the electron system. The interaction of electrons with transverse phonons increases the electron-phonon relaxation rate by a factor of {congruent}15 in comparison with the case when only longitudinal phonons are taken into consideration. The peculiarity of the screening effects in a superconductor leads to the conclusion that at low temperatures {ital T}{much lt}{Delta} transverse phonons do not participate in the electron-phonon relaxation processes.

• OSTI ID: 5504589
• Journal Information: Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:8; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRON GAS
ELECTRON-ION COUPLING
ELECTRON-PHONON COUPLING
ELEMENTS
FLUIDS
GASES
GAUGE INVARIANCE
HEATING
INVARIANCE PRINCIPLES
METALS
RELAXATION
SCREENING
SUPERCONDUCTORS
ULTRALOW TEMPERATURE