Effect of Ta2O5 addition on the superconducting properties of REBa2Cu3Oy

R. Kita, T. Naito, A. Shiraishi, K. Oidaira, T. Nakamura, O. Miura, K. Matsumoto, Y. Yoshida, M. Mukaida, S. Horii, A. Ichinose

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We have investigated the effect of Ta2O5 addition on the superconducting properties of REBa2Cu3Oy (RE = Er, Sm and Eu: REBCO) prepared by a powder-sintering method. Tc(zero) values showed no degradation up to 1.0 wt.% Ta2O5 addition for ErBCO samples. EuBCO and SmBCO samples showed the increase in Tc(zero) from 89 K to 94 K by the addition of 1 wt.% Ta2O5, and 80 K to 94 K by the addition of 2 wt.% Ta2O5, respectively. Jc values at B = 0.5 T increased by two times the pure samples for ErBCO with 1.0 wt.% addition, four times for EuBCO with 1.5 wt.% addition, and 33 times for SmBCO with 1.0 wt.% addition. The formation of REBa2TaO6 was observed for the Ta2O5-added REBCO samples.

Original languageEnglish
Pages (from-to)391-394
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - Oct 1 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Effect of Ta<sub>2</sub>O<sub>5</sub> addition on the superconducting properties of REBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub>'. Together they form a unique fingerprint.

Cite this