Superconducting properties in magnetic field of (Nd, Eu, Gd)1+xBa2-xCu3Oy thin films prepared by low temperature growth technique

K. Inoue, Y. Yoshida, Y. Ichino, Y. Takai, K. Matsumoto, A. Ichinose, Masashi Mukaida, S. Horii

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In order to achieve high irreversibility field (Birr), we fabricated (Nd, Eu, Gd)Ba2Cu3Oy (NEGBCO) thin films by pulsed laser deposition (PLD) method and low temperature growth (LTG) technique. In the LTG-NEGBCO films on MgO, critical current density (Jc) at 77 K and magnetic field B = 5 T was 0.13 MA/cm2 twice as high as that of PLD-NEGBCO/MgO and Birr at 77 K reached 11.8 T. Interestingly, the anomalous peaks on the Jc-B and Fp-B (flux pinning force density Fp = Jc × B) curves at 77 K and B = 4 T were observed on the LTG-NEGBCO/MgO films. From these results, we can consider that NEGBCO films are good candidates and LTG is an effective technique for improving superconducting properties.

Original languageEnglish
Pages (from-to)1611-1614
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume468
Issue number15-20
DOIs
Publication statusPublished - Sep 15 2008

All Science Journal Classification (ASJC) codes

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

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