Melting of the Abrikosov flux lattice in anisotropic superconductors
R. G. Beck, D. E. Farrell, J. P. Rice, D. M. Ginsberg, V. G. Kogan
DOI 10.1103/PhysRevLett.68.1594 · Physical Review Letters
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Abstract
It has been proposed that the Abrikosov flux lattice in high-Tc superconductors is melted over a significant fraction of the phase diagram. We provide a thermodynamic argument which establishes that the angular dependence of the melting temperature is controlled by the superconducting mass anisotropy. Using a low-frequency torsional-oscillator technique, this relationship has been tested in untwinned single-crystal YBa2Cu3O7−δ. The results offer decisive support for the melting proposal.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90.2 | Pressure not reported | unknown |
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