The thermal-and disorder-induced effects in the mixed state of a layered high-T c superconductor (in a field H‖ c) are studied. The flux line lattice is of a quasi-2D type at …
BI Ivlev, NB Kopnin - Physical review letters, 1990 - APS
For a high-T c layered superconductor, we study a flux creep when the magnetic field is parallel to the layers (the CU-O planes) and vortices move across them. In a homogeneous …
The theory of collective pinning in the presence of thermal fluctuations of vortex lines is developed. Critical current jc is shown to decrease rapidly with temperature. Flux creep …
Thermal fluctuations of vortex lines are shown to be capable of strongly reducing the value of the critical current in the mixed state of high-T c superconductors. The theory of pinning in …
D Feinberg, C Villard - Physical review letters, 1990 - APS
Reversible flux penetration in uniaxial layered superconductors is studied, taking into account the possible trapping of vortex cores between layers. This is found to induce high …
The transition in crystalline high-T c superconductors from irreversible to reversible magnetic behavior above a field-dependent temperature, first ascribed to 'glassiness' then to 'flux …
In superconducting films under an applied dc current, we analyze experimentally and theoretically the influence of engineered pinning on the vortex velocity at which the flux-flow …
The theory of pinning of a vortex liquid by weak disorder is developed. Two different vortex- liquid dissipative regimes are shown to exist: the flux flow above some crossover …
A sharp maximum in the critical current J 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 …