Flux-Lattice Melting in Amorphous CompositeTwo-Dimensional Superconductors
- 11 January 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 60 (2) , 144-147
- https://doi.org/10.1103/physrevlett.60.144
Abstract
We report the phase diagram for magnetic fluxoids in two-dimensional superconducting films. The films are sputtered directly onto high- silicon oscillators. The melting of the vortex lattice is signaled by a peak in the attenuation and a shift of the resonant frequency of the oscillator, caused by the rapid change in mobility of the vortex array. The zero-field limit of the melting temperature can be fitted by the Kosterlitz-Thouless model. However, the magnetic field dependence disagree with the current theoretical picture.
Keywords
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