Improved flux pinning in nanostructured rebco films controlling the APC growth mechanism

Yutaka Yoshida, Yusuke Ichino, Toshinori Ozaki, Shuhei Funaki, Yoshiaki Takai, Kaname Matsumoto, Ataru Ichinose, Shigeru Horii, Masashi Mukaida, Ryusuke Kita

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    Recently increasing the Jc at higher magnetic field can be accomplished by introducing artificial pinning center (APC) into REBCO coated conductor and films. In particular, in impurity additions, nano-BaZrO 3 (BZO) rods in PLD-YBCO and GdBCO coated conductor have been investigated for c-axis correlated flux pinning. We have reported the high Jc SmBCO and (Nd,Eu,Gd)BCO films and coated conductor using usual PLD, low temperature growth (LTG) and Vapor-liquid-solid growth (VLS) technique. In this research we studied the controlling the nanorods BZO growth mechanism by initial deposition of nanodots on the surface for improving the Jc at magnetic field. REBCO+BZO film are found to have superior performance in magnetic field at all field orientations, suggesting the presence of BZO-rods with optimized shape and density caused increasing BZO-dots at nuclear growth. The present work has confirmed that the control of APC initial growth is a promising technique to produce flux pinning center.

    Original languageEnglish
    Article number5153180
    Pages (from-to)3262-3265
    Number of pages4
    JournalIEEE Transactions on Applied Superconductivity
    Volume19
    Issue number3
    DOIs
    Publication statusPublished - Jun 2009

    All Science Journal Classification (ASJC) codes

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

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