Effects of c-axis correlated pinning in RE123 superconductors

S. Awaji, M. Namba, K. Watanabe

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3 Citations (Scopus)


We studied effects of the c-axis correlated disorder on the vortex liquid state in REBa2Cu3O7 (RE123; RE rare earth including Y) superconducting bulk samples. The dip structure for B//c-axis in the angular dependent resistivity appears for all samples used in this study. This means the reduction of the dissipation in the vortex liquid state by the c-axis correlated pinning. We analyzed the reduction of the dissipation by the c-axis correlated pinning by using the resistivity difference between on and off the dip, Δρmaxn . We found that Δρmaxn shows the different field dependence for a part of the NEG123 bulk samples in comparison with those of the Y123 bulk samples. The different field dependence of Δρmax nis originated from the different type of the c-axis correlated defects such as twin boundary and probably nanolamella.

Original languageEnglish
Article number062
Pages (from-to)271-274
Number of pages4
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2006 Dec 1


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