Theory of the cos phi term in the Josephson tunneling current

Journal Article · Thu Dec 01 04:00:00 EST 1977 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00661534· OSTI ID:5333291

Hida, K; Ono, Y

The current--phase relation for the Josephson tunnel junction is investigated by using the time-dependent Ginzburg--Landau (TDGL) equations. The cos phi term is shown to have a negative coefficient and the same order of magnitude as the phase-independent term. The effect of the tunneling barrier is taken into account in terms of the boundary conditions of the order parameter and the electric potential at the junction; the new boundary conditions are derived by generalizing de Gennes' discussions for the dc Josephson effect to the time-dependent phenomena. The TDGL equations are solved on the assumption that the transmission coefficient across the junction is small enough and that the processes involved are quasi-stationary. It is concluded that the spatial and temporal variations of various quantities are of vital importance to an understanding of the nonequilibrium characteristics in the tunnel junction.

• Research Organization: Department of Physics, University of Tokyo, Tokyo, Japan
• OSTI ID: 5333291
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 29:5; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

656101* -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOUNDARY CONDITIONS
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
GINZBURG-LANDAU THEORY
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
ORDER PARAMETERS
SUPERCONDUCTING JUNCTIONS