Introduction of c-axis-correlated 1D pinning centers and vortex Bose glass in Ba-Nb-O-doped ErBa2Cu3Oy films

S. Horii, K. Yamada, H. Kai, A. Ichinose, Masashi Mukaida, Ryo Teranishi, R. Kita, K. Matsumoto, Y. Yoshida, J. Shimoyama, K. Kishio

Research output: Contribution to journalArticle

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Abstract

We report the effectiveness of barium niobate as a needle-type vortex pinning center, as well as a change in the vortex state in Ba-Nb-O (BNO)-doped ErBa2Cu3Oy thin films. BNO doping was effective for improving critical current properties for a magnetic field direction parallel to the c axis of a matrix film and induced the generation of columnar defects with diameters of 5-25nm. The irreversibility lines were also changed by the BNO doping and were similar to those of heavy-ion-irradiated YBa 2Cu3Oy crystals in which the vortex Bose glass state was induced. It is suggested that the characteristic field relevant to crossover from the Bose glass to collective pinned glass depends on the BNO doping level. There is a possibility that Ba-based perovskite-type oxides promote the formation of nanorods universally and these nanorods play the role of one-dimensional c-axis-correlated pinning centers.

Original languageEnglish
Pages (from-to)1115-1119
Number of pages5
JournalSuperconductor Science and Technology
Volume20
Issue number12
DOIs
Publication statusPublished - Dec 1 2007

Fingerprint

Vortex flow
Doping (additives)
vortices
Nanorods
Glass
nanorods
glass
Heavy Ions
Critical currents
niobates
Barium
Heavy ions
needles
Needles
Perovskite
Oxides
barium
critical current
crossovers
heavy ions

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Introduction of c-axis-correlated 1D pinning centers and vortex Bose glass in Ba-Nb-O-doped ErBa2Cu3Oy films. / Horii, S.; Yamada, K.; Kai, H.; Ichinose, A.; Mukaida, Masashi; Teranishi, Ryo; Kita, R.; Matsumoto, K.; Yoshida, Y.; Shimoyama, J.; Kishio, K.

In: Superconductor Science and Technology, Vol. 20, No. 12, 01.12.2007, p. 1115-1119.

Research output: Contribution to journalArticle

Horii, S, Yamada, K, Kai, H, Ichinose, A, Mukaida, M, Teranishi, R, Kita, R, Matsumoto, K, Yoshida, Y, Shimoyama, J & Kishio, K 2007, 'Introduction of c-axis-correlated 1D pinning centers and vortex Bose glass in Ba-Nb-O-doped ErBa2Cu3Oy films', Superconductor Science and Technology, vol. 20, no. 12, pp. 1115-1119. https://doi.org/10.1088/0953-2048/20/12/005
Horii, S. ; Yamada, K. ; Kai, H. ; Ichinose, A. ; Mukaida, Masashi ; Teranishi, Ryo ; Kita, R. ; Matsumoto, K. ; Yoshida, Y. ; Shimoyama, J. ; Kishio, K. / Introduction of c-axis-correlated 1D pinning centers and vortex Bose glass in Ba-Nb-O-doped ErBa2Cu3Oy films. In: Superconductor Science and Technology. 2007 ; Vol. 20, No. 12. pp. 1115-1119.
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