Peak Effect in Twinned Superconductors
A. I. Larkin, M. C. Marchetti, V. M. Vinokur
DOI 10.1103/PhysRevLett.75.2992 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
A sharp maximum in the critical current Jc 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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Upper critical magnetic field for antiferromagnetically correlated d-wave superconductors
similarity 0.96A. Pérez-González & R. A. Brito-Orta
Source status unknown — claims are unverified
Critical scaling of the ac conductivity for a superconductor above Tc
similarity 0.95Robert A. Wickham & Alan T. Dorsey
Source status unknown — claims are unverified
Charge Effects and Josephson Plasma Resonance on Planar Defects in High-Temperature Superconductors
similarity 0.95A. Gurevich & M. Tachiki
Source status unknown — claims are unverified
Scattering of normal excitations by superconducting fluctuations in single-crystal and granular copper oxide superconductors
similarity 0.95J. A. Veira & Félix Vidal
Source status unknown — claims are unverified
Quasiparticle and Spin Excitation Spectra in the Normal and d-Wave Superconducting State of the Two-Dimensional Hubbard Model
similarity 0.95T. Dahm & L. Tewordt
Source status unknown — claims are unverified
d-wave superconductors near surfaces and interfaces: A scattering matrix approach within the quasiclassical technique
similarity 0.94T. Lück et al.
Source status unknown — claims are unverified