Evidence of strong flux pinning in melt-processed ternary (Nd-Eu-Gd)Ba2Cu3Oy superconductors

A. K. Pradhan, Muralidhar Miryala, Michael Rudolf Koblischka, Masato Murakami, K. Nakao, N. Koshizuka

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Abstract

The resistive transitions in magnetic fields, the voltage-current characteristics and magnetization for several (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG) samples with varying degrees of second-phase additions are reported. The vortex viscosity increases remarkably with the addition of the second phase, promoting the vortex entanglement in the liquid phase. Results suggest that the viscosity of the vortex liquid state increases due to the spatial variation of Tc and with the addition of the second phase with Pt.

Original languageEnglish
Pages (from-to)253-255
Number of pages3
JournalApplied Physics Letters
Volume75
Issue number2
Publication statusPublished - 1999 Jul 12
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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