Spectroscopy of phonons in dirty superconducting contacts

Journal Article · Tue Nov 01 04:00:00 EST 1983 · Sov. J. Low Temp. Phys. (Engl. Transl.); (United States)

OSTI ID:6825727

Yanson, I K; Bobrov, N L; Rybal'chenko, L F; Fisun, V V

The nonlinearities of current--voltage characteristics (IVC) of superconducting niobium point contacts for voltages of the order of the characteristic phonon frequencies are investigated. It is shown that in limiting by dirty contacts (l/sub 1/< or approx. =d>..lambda../sub epsilon/ (..lambda../sub epsilon/ is the diffusion length for energy relaxation of the electrons, xi is the coherence length) which makes possible inelastic transitions of electrons between pair chemical potentials differing in energy by an account eV (V is the voltage drop across the contact).

• Research Organization: Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
• OSTI ID: 6825727
• Journal Information: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 9:11; ISSN SJLPD
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment &amp; Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRIC CONDUCTIVITY
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
METALS
NIOBIUM
NONLINEAR PROBLEMS
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
SUPERCONDUCTORS
TRANSITION ELEMENTS