Inhomogeneous state of a Coulomb superconductor
Journal Article
·
· Sov. Phys. - Solid State (Engl. Transl.); (United States)
OSTI ID:6696763
A study is made of Coulomb superconductors in which the superconducting state is due to the electron-electron repulsion under inverted-population conditions. The Ginzburg-Landau equation for a Coulomb superconductor and Maxwell's equations are used to show that the perfect paramagnetism of a homogeneous state of a Coulomb superconductor results in an instability of the system under fluctuations of the electromagnetic field. Inhomogeneous states of a Coulomb superconductor in the absence of external fields are determined for the one-dimensional case. The distribution of a magnetic field in the superconductor under steady-state conditions is of the soliton type with a width approx.lambda (the Ginzburg-Landau parameter for a Coulomb superconductor is kappa-cur = lambda/xi>>1) and the superconducting region is localized in the vicinity of the soliton. A nonstationary state (self-modeling solution) represents a domain wall, moving with a well-defined velocity and separating the superconducting and normal states, and a ''magnetic'' soliton in the wall region. The whole structure moves toward the superconducting region.
- Research Organization:
- P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
- OSTI ID:
- 6696763
- Journal Information:
- Sov. Phys. - Solid State (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Solid State (Engl. Transl.); (United States) Vol. 24:5; ISSN SPSSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANALYTICAL SOLUTION
COULOMB FIELD
DIFFERENTIAL EQUATIONS
DISTRIBUTION
ELECTRIC FIELDS
ELECTROMAGNETIC FIELDS
EQUATIONS
FLUCTUATIONS
GINZBURG-LANDAU THEORY
INSTABILITY
MAGNETIC FIELDS
MAGNETISM
MAXWELL EQUATIONS
ONE-DIMENSIONAL CALCULATIONS
PARAMAGNETISM
PARTIAL DIFFERENTIAL EQUATIONS
QUASI PARTICLES
SOLITONS
STEADY-STATE CONDITIONS
SUPERCONDUCTORS
VARIATIONS
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANALYTICAL SOLUTION
COULOMB FIELD
DIFFERENTIAL EQUATIONS
DISTRIBUTION
ELECTRIC FIELDS
ELECTROMAGNETIC FIELDS
EQUATIONS
FLUCTUATIONS
GINZBURG-LANDAU THEORY
INSTABILITY
MAGNETIC FIELDS
MAGNETISM
MAXWELL EQUATIONS
ONE-DIMENSIONAL CALCULATIONS
PARAMAGNETISM
PARTIAL DIFFERENTIAL EQUATIONS
QUASI PARTICLES
SOLITONS
STEADY-STATE CONDITIONS
SUPERCONDUCTORS
VARIATIONS