Interaction of two-dimensional vortices with linear ion tracks in the highly anisotropic layered cuprates
- Materials Sciences Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Superconductor Technologies, Inc., Santa Barbara, California 93111 (United States)
The effects of linear, ion-track pinning centers on the resistive dissipation and critical current density {ital J}{sub {ital c}} are investigated in the highly anisotropic Tl-cuprate superconductors. At some fields, the data rigorously follow two-dimensional (2D) scaling without irradiation, but the irradiated samples show a dip in dissipation for fields parallel to the ion tracks, indicating 3D effects. Also the effective pinning field of the defects is found to be temperature dependent: it rises to {ital many} {ital times} {ital the} {ital ion}-{ital dose} {ital field} for temperatures well below {ital T}{sub {ital c}}. These results imply that vortex-vortex interactions need to be included for a quantitative understanding. {copyright} {ital 1996 The American Physical Society.}
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 286688
- Journal Information:
- Physical Review, B: Condensed Matter, Vol. 54, Issue 5; Other Information: PBD: Aug 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Anisotropic Rescaling of a Splayed Pinning Landscape in Hg Cuprates: Strong Vortex Pinning and Recovery of Variable Range Hopping
How to optimize high-T[sub c] superconductive cuprates