Transition in the flux lattice of artificially layered superconductors
- 28 October 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (18) , 2577-2580
- https://doi.org/10.1103/physrevlett.67.2577
Abstract
We report a novel magnetic-field dependence of the critical-current density in artificially grown Ge/Pb superlattices. In these layered structures exhibits an unexpected minimum as a function of perpendicular applied field, unlike any ever observed in other superconductor systems. The systematic evolution of this minimum as a function of layer thicknesses, temperature and pinning strength is related to either flux-lattice decoupling or melting.
Keywords
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