High-critical-current-density SmBa2Cu3O7-x films induced by surface nanoparticle

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

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

In oxide-based superconducting thin films, conceivable factors that give rise to a pinning center include dislocations, precipitates, twin boundaries, and a-axis-oriented phases. In this study, crystalline defects were created perpendicular to a high-Jc Sm1+xBa2-xCu 3Oy film surface during a film deposition process. We obtained extremely high Jc values, Jc = 0.37 MA/cm 2 (77 K, B // c, B = 5 T) and JC = 0.1 MA/cm2 (77 K, B // c, B = 8 T). These values are equal to or exceed that of the previously reported NbTi wire material measured in a high magnetic field at 4.2 K.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume44
Issue number16-19
DOIs
Publication statusPublished - Dec 1 2005
Externally publishedYes

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critical current
current density
Nanoparticles
nanoparticles
Superconducting films
Precipitates
precipitates
wire
Wire
Magnetic fields
Crystalline materials
Defects
Oxides
oxides
defects
thin films
magnetic fields

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

High-critical-current-density SmBa2Cu3O7-x films induced by surface nanoparticle. / Yoshida, Yutaka; Matsumoto, Kaname; Miura, Masashi; Ichino, Yusuke; Takai, Yoshiaki; Ichinose, Ataru; Horii, Shigeru; Mukaida, Masashi.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 44, No. 16-19, 01.12.2005.

Research output: Contribution to journalArticle

Yoshida, Yutaka ; Matsumoto, Kaname ; Miura, Masashi ; Ichino, Yusuke ; Takai, Yoshiaki ; Ichinose, Ataru ; Horii, Shigeru ; Mukaida, Masashi. / High-critical-current-density SmBa2Cu3O7-x films induced by surface nanoparticle. In: Japanese Journal of Applied Physics, Part 2: Letters. 2005 ; Vol. 44, No. 16-19.
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