Distribution of nonequilibrium excitations and phonon generation in superconducting tunnel junctions
On the basis of the complete system of equations which describe the nonequilibrium states of S/sub 1/--I--S/sub 2/ tunnel junctions caused by a quasiparticle current, distributions are obtained of the electron excitations in S-films of a symmetry junction (identical films forming a tunnel junction) for arbitrary transparencies of the tunnel barrier in the case Tvery-much-less-than..delta.., (eV: 2..delta..very-much-less-than2..delta.. is the applied voltage, and ..delta.. is the energy gap). The effect of suppressing the superconductivity in the nonequilibrium state (eV>2..delta..) is considered. A theory is given for the generation of phonons with the frequency ..omega..> or =2..delta.. by quasiparticle tunneling. Results of already known experiments are explained and new features of the distribution of recombination phonons being generated are predicted.
- Research Organization:
- Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR
- OSTI ID:
- 6776005
- Journal Information:
- Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 3:8; ISSN SJLPD
- Country of Publication:
- United States
- Language:
- English
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