Spatial variations of the order parameter in superconductors containing a magnetic impurity

Journal Article · Thu Jan 01 04:00:00 EST 1976 · Physical Review, B: Solid State

DOI:https://doi.org/10.1103/PhysRevB.13.1· OSTI ID:4074410

Schlottmann, P.

The spatial variation of the superconductor order parameter in the presence of a classical spin has been analyzed by solving self-consistently the Gorkov equation for the one-particle Green's function. In the vicinity of the impurity the deviations from the bulk pair potential $delta$ is of the form $delta$A(T)sin²k_Fr/(k_Fr)², where A(T) is a temperature- dependent factor. At large distances from the impurity, r very-much-greater-than xi₀ (x₀ is the superconductor coherence length at zero temperature), $delta$(r) varies like 1/r near the transition temperature, as is expected from the Ginzburg--Landau theory. At low temperatures the spatial dependence is oscillatory and decreases as 1/r³. (AIP)

• Research Organization: Institut fur Theoretische Physik, Freie Universitat Berlin, 1 Berlin 33, Arnimallee 3, Germany
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-021540
• OSTI ID: 4074410
• Journal Information: Physical Review, B: Solid State, Journal Name: Physical Review, B: Solid State Journal Issue: 1 Vol. 13; ISSN 0556-2805; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

*SUPERCONDUCTORS-- ORDER PARAMETERS
643902*
GINZBURG-LANDAU THEORY
IMPURITIES
MAGNETIC MATERIALS
N66200* --Physics (Low Temperature)--Superconductivity
SPATIAL DISTRIBUTION
SPIN
TRANSITION TEMPERATURE