Computer simulation of flux pinning in type-II superconductors

Journal Article · Mon May 16 00:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.50.1599· OSTI ID:5977219

Brandt, E H

Random point pinning of ideal or defective flux-line lattices is simulated on a computer. For weak pins, Larkin and Ovchinnikov's two-dimensional collective pinning is confirmed: j/sub c/ = constn/sub p//R/sub p/c/sub 66/ j/sub c/ is the critical current; n/sub p/, f/sub p/, and R/sub p/ are the density, force, and range of pins; and c/sub 66/ is the shear modulus). The constant is determined. Defective lattices are pinned more strongly by factors 1.3 to 3, explaining the observed history effect. A pronounced jump in the curves j/sub c/(f/sub p/) indicates the onset of plastic deformation.

• Research Organization: Institut fuer Physik, Max-Planck-Institut fuer Metallforschung, Stuttgart, West Germany
• OSTI ID: 5977219
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 50:20; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
CRITICAL CURRENT
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CURRENTS
DATA
DEFORMATION
ELECTRIC CURRENTS
INFORMATION
MAGNETIC FLUX
MECHANICAL PROPERTIES
NUMERICAL DATA
PLASTICITY
SIMULATION
SUPERCONDUCTORS
THEORETICAL DATA
TYPE-II SUPERCONDUCTORS