Microstructures of REBa2Cu3Oy films containing artificial pinning centers of various dimensions

A. Ichinose, Paolo Mele, K. Matsumoto, H. Kai, M. Takamura, K. Yamada, M. Mukaida, S. Horii, S. Funaki, Y. Ichino, Y. Yoshida, R. Kita

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

To improve critical current density, Jc, under magnetic fields and at 77 K, some pinning centers have been introduced into REBa2Cu3Oy films (RE: rare earth elements). Pinning centers have been distinguished as one-dimensional, two-dimensional or three-dimensional artificial pinning centers (APCs) on the basis of their structural dimension. One-dimensional and three-dimensional APCs have considerably improved Jc as a result of our efforts. For example, BaZrO3 or BaSnO3 nanorods are significantly effective one-dimensional APCs. It is found that the nanorod structure can be controlled and the Jc-B properties vary depending on the nanorod structure. Moreover, the principle of two-dimensional APCs, which have been successfully designed in a multilayer structure, has been clarified. In this paper, the microstructures of the one- and two-dimensional APCs, such as the nanorods and the boundaries, are described in particular. The Jc-B properties also are discussed.

Original languageEnglish
Pages (from-to)1374-1379
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume469
Issue number15-20
DOIs
Publication statusPublished - 2009 Oct 15
Externally publishedYes

Fingerprint

Nanorods
microstructure
Microstructure
nanorods
Rare earth elements
Multilayers
Magnetic fields
laminates
critical current
rare earth elements
current density
magnetic fields

Keywords

  • Artificial pinning centers
  • High-T superconducting films
  • Microstructures
  • TEM

ASJC Scopus subject areas

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

Cite this

Microstructures of REBa2Cu3Oy films containing artificial pinning centers of various dimensions. / Ichinose, A.; Mele, Paolo; Matsumoto, K.; Kai, H.; Takamura, M.; Yamada, K.; Mukaida, M.; Horii, S.; Funaki, S.; Ichino, Y.; Yoshida, Y.; Kita, R.

In: Physica C: Superconductivity and its Applications, Vol. 469, No. 15-20, 15.10.2009, p. 1374-1379.

Research output: Contribution to journalArticle

Ichinose, A, Mele, P, Matsumoto, K, Kai, H, Takamura, M, Yamada, K, Mukaida, M, Horii, S, Funaki, S, Ichino, Y, Yoshida, Y & Kita, R 2009, 'Microstructures of REBa2Cu3Oy films containing artificial pinning centers of various dimensions', Physica C: Superconductivity and its Applications, vol. 469, no. 15-20, pp. 1374-1379. https://doi.org/10.1016/j.physc.2009.05.079
Ichinose, A. ; Mele, Paolo ; Matsumoto, K. ; Kai, H. ; Takamura, M. ; Yamada, K. ; Mukaida, M. ; Horii, S. ; Funaki, S. ; Ichino, Y. ; Yoshida, Y. ; Kita, R. / Microstructures of REBa2Cu3Oy films containing artificial pinning centers of various dimensions. In: Physica C: Superconductivity and its Applications. 2009 ; Vol. 469, No. 15-20. pp. 1374-1379.
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