Continuous Two-Dimensional Melting of Vortex-Solid in High Temperature Superconductors

MRS Online Proceedings Library volume 169, pages23–26(1989)Cite this article

Abstract

A model of continuous two-dimensional melting in the mixed state of high temperature superconductors is proposed. Two-dimensional melting sets in at a cross-over temperature Tx(H) below the three-dimensinal phase transition Tx(H) due to finite size effects, and Tx(H) is a function of the sample thickness (lc), applied magnetic field (H), and k(= λ/ξ) For a given zero-field transition temperature Tc0 and material properties, (such as defect density), the onset temperature of 2D-melting (Tx(H)) decreases with decreasing sample thickness and increasing magnetic field. In transport studies, thermally induced melting is further complicated by the depinning effect of high current densities.

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  1. Department of Physics, California Institute of Technology, Pasadena, CA, 91125, USA

    N. C. Yeh

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  1. N. C. Yeh
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Yeh, N.C. Continuous Two-Dimensional Melting of Vortex-Solid in High Temperature Superconductors. MRS Online Proceedings Library 169, 23–26 (1989). https://doi.org/10.1557/PROC-169-23

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