Oscillation in a nonequilibrium superconductor

Journal Article · Sun Feb 01 04:00:00 EST 1981 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00120207· OSTI ID:6497831

Chang-Heng, W; Xue-Yuan, Z

Using the m-model and the Rothwarf-Taylor equations, this paper predicts that a superconductor will oscillate between two nonequillibrium superconducting states with different energy gaps when quasiparticles are injected at the edge of the energy gap through the tunneling effect. The main sources of origin of this oscillation are the quasiparticle injection at the gap edge and the existance of recombination phonons with energy W = 2D(n). Under certain nonequilibrium conditions, the recombination phonon system does not take part in Cooper pair-breaking processes and can further stimulate the quasiparticles to recombine into pairs. The uncertainty DN/sub p/ of the number N/sub p/ of Cooper pairs has the same order of magnitude as N/sub p/ itself in such an oscillating superconductor, so that the phase v of the wave function has a definite value. If superconducting weak coupling is formed between such two oscillating superconductors, this system should be described in the v-representation.

• Research Organization: The Institute of Physics, Chinese Academy of Sciences, Beijing (Peking), China
• OSTI ID: 6497831
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 42:3; 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
COOPER PAIRS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY GAP
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
RECOMBINATION
SUPERCONDUCTIVITY