Freezing of the vortex liquid in high-Tc superconductors: A density-functional approach
Surajit Sengupta, C. Dasgupta, H. R. Krishnamurthy, Gautam I. Menon, T. V. Ramakrishnan
DOI 10.1103/PhysRevLett.67.3444 · Physical Review Letters
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Abstract
The structure of the unpinned vortex fluid in layered oxide high-temperature superconductors is investigated numerically using appropriate classical liquid-state theory, for magnetic fields B perpendicular to the layer plane. The direct correlation function so obtained is used as input for a first-principles, parameter-free calculation of the discontinuous fluid-to-Abrikosov-lattice transition boundary Tf(B). This transition boundary is found to have a shape and location similar to that observed in strongly anisotropic materials, e.g., Bi-Sr-Ca-Cu-O.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 85 | Pressure not reported | unknown |
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