Peak effect in twinned superconductors
Journal Article
·
· Physical Review Letters
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
A sharp maximum in the critical current {ital J}{sub {ital c}} as a function of temperature just below the melting point of the Abrikosov flux lattice has recently been observed in both low- and high-temperature superconductors. This peak effect is strongest in twinned crystals for fields aligned with the twin planes. We propose that this peak signals the breakdown of the collective pinning regime and the crossover to strong pinning of single vortices on the twin boundaries. This crossover is very sharp and can account for the steep drop of the differential resistivity observed in experiments. {copyright} {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 118596
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Vortex shear modulus and lattice melting in twin boundary channels of YBa{sub {bold 2}}Cu{sub {bold 3}}O{sub {bold 7{minus}}}{ital {delta}}
The interaction of vortices with twin boundaries
The effect of a twinning plane on the magnetic properties of superconductors
Journal Article
·
Sat Jun 01 00:00:00 EDT 1996
· Physical Review Letters
·
OSTI ID:285771
The interaction of vortices with twin boundaries
Conference
·
Mon May 01 00:00:00 EDT 1995
·
OSTI ID:67479
The effect of a twinning plane on the magnetic properties of superconductors
Journal Article
·
Tue Jan 31 23:00:00 EST 1989
· Superconductivity; (USA)
·
OSTI ID:6963128