Addition of low-Tc nanoparticles dispersions to enhance flux pinning of Sm1+xBa2-xCu3Oy films

Masashi Miura, Yusuke Ichino, Yutaka Yoshida, Yoshiaki Takai, Kaname Matsumoto, Ataru Ichinose, Shigeru Horii, Masashi Mukaida

Research output: Contribution to journalArticle

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Abstract

We have fabricated epitaxial films of high-Jc SmBCO using a low-temperature growth technique (LTG). The angular dependence of Jc and composition analysis showed that the LTG-SmBCO films included nanosize low-Tc phases within the high-Tc matrix, the LTG-SmBCO films showed Jc = 0.28 MA/cm2 (77 K, B∥c, B = 5 T). However, number density of low-Tc phase is still less than the amount which is desired for complete flux-pinning at high-magnetic field. We deposited LTG-SmBCO including 1.4-2.8 vol.% of low-Tc nanoparticles. The films with 1.4 vol.% nanoparticles showed Jc = 0.37 MA/cm2 (77 K, B∥c, B = 5 T) and 0.10 MA/cm2 (77 K, B∥c, B = 8 T). We speculated that the behaviors of the Jc-B at high-magnetic field depend not only on distribution and size of low-Tc regions, but also the Sm/Ba composition within the low-Tc regions.

Original languageEnglish
Pages (from-to)643-647
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - Oct 1 2006

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Flux pinning
flux pinning
Growth temperature
Dispersions
Nanoparticles
nanoparticles
Magnetic fields
Epitaxial films
Chemical analysis
magnetic fields
matrices

All Science Journal Classification (ASJC) codes

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

Cite this

Addition of low-Tc nanoparticles dispersions to enhance flux pinning of Sm1+xBa2-xCu3Oy films. / Miura, Masashi; Ichino, Yusuke; Yoshida, Yutaka; Takai, Yoshiaki; Matsumoto, Kaname; Ichinose, Ataru; Horii, Shigeru; Mukaida, Masashi.

In: Physica C: Superconductivity and its applications, Vol. 445-448, No. 1-2, 01.10.2006, p. 643-647.

Research output: Contribution to journalArticle

Miura, Masashi ; Ichino, Yusuke ; Yoshida, Yutaka ; Takai, Yoshiaki ; Matsumoto, Kaname ; Ichinose, Ataru ; Horii, Shigeru ; Mukaida, Masashi. / Addition of low-Tc nanoparticles dispersions to enhance flux pinning of Sm1+xBa2-xCu3Oy films. In: Physica C: Superconductivity and its applications. 2006 ; Vol. 445-448, No. 1-2. pp. 643-647.
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AU - Takai, Yoshiaki

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AU - Horii, Shigeru

AU - Mukaida, Masashi

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