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Inequivalent layers can cause flux-lattice melting in layered superconductors

Stavros Theodorakis

DOI 10.1103/PhysRevB.42.6294 · Physical Review B

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Abstract

The high-Tc superconductors consist typically of superconducting (S) and nonsuperconducting (W) layers. The latter layers acquire actually a nonzero order parameter through a proximity effect. We show that the vortices fluctuate much more wildly on the W layers, than on the S layers. Consequently, flux-lattice melting can begin rather easily on the W layers, rendering then the whole system two dimensional.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
YBa2Cu3O7-δ

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—Pressure not reportedunknown

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