Sensitivity of the critical magnetic field to phase shifts of paramagnetic impurities

Journal Article · Thu Feb 28 23:00:00 EST 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.31.2952· OSTI ID:5870593

Stephan, W; Carbotte, J P

We have calculated the critical magnetic field deviation function D(t) of a BCS superconductor containing paramagnetic impurities treated in the strong-scattering limit of Shiba and of Rusinov. For certain combinations of scattering phase shifts the variation of D(t) with impurity concentration can be very different from that found in the Abrikosov-Gor'kov approximation. This is observed in experiments on Zn-Mn which can be understood qualitatively on the basis of recent phase shifts derived from tunneling experiments.

• Research Organization: Physics Department, McMaster University, Hamilton, Ontario, Canada L8S4M1
• OSTI ID: 5870593
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 31:5; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
BCS THEORY
CRITICAL FIELD
DATA
ENERGY LEVELS
INFORMATION
MAGNETIC FIELDS
MAGNETISM
MANGANESE ALLOYS
NUMERICAL DATA
NUMERICAL SOLUTION
PARAMAGNETISM
PARTIAL WAVES
PHASE SHIFT
SENSITIVITY
SUPERCONDUCTORS
THEORETICAL DATA
TUNNEL EFFECT
TYPE-II SUPERCONDUCTORS
ZINC ALLOYS