C-axis-correlated vortex pinning center induced by dilute Co-doping in pulsed-laser-deposition-ErBa2Cu3Oy films

Shigeru Horii, Yusuke Ichino, Toshinori Ozaki, Kaname Matsumoto, Yutaka Yoshida, Masashi Mukaida, Ataru Ichinose, Jun Ichi Shimoyama, Kohji Kishio

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Critical current properties were carefully clarified for Co-doped ErBa 2Cu3Oy (Er123) films grown by pulse laser deposition. Co-doped Er123 films with various Co doping levels have been successfully fabricated by controlling substrate temperature (Ts). Critical temperatures (Tc) were decreased with a decrease in T s, which means that the Co-doping levels into the CuO2 plane can be controlled by Ts. It was found from J c-θ plots for relatively heavily Co-doped films that c-axis-correlated vortex pinning centers were introduced by the Co-doping. The inhomogeneous distribution of Co ions in films probably plays a key role in the improvement of the new type of pinning center.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume45
Issue number24-28
DOIs
Publication statusPublished - Jun 16 2006

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Pulsed laser deposition
pulsed laser deposition
Vortex flow
Doping (additives)
vortices
laser deposition
Critical currents
Laser pulses
critical current
critical temperature
plots
Temperature
Ions
Substrates
pulses
ions
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

C-axis-correlated vortex pinning center induced by dilute Co-doping in pulsed-laser-deposition-ErBa2Cu3Oy films. / Horii, Shigeru; Ichino, Yusuke; Ozaki, Toshinori; Matsumoto, Kaname; Yoshida, Yutaka; Mukaida, Masashi; Ichinose, Ataru; Shimoyama, Jun Ichi; Kishio, Kohji.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 45, No. 24-28, 16.06.2006.

Research output: Contribution to journalArticle

Horii, Shigeru ; Ichino, Yusuke ; Ozaki, Toshinori ; Matsumoto, Kaname ; Yoshida, Yutaka ; Mukaida, Masashi ; Ichinose, Ataru ; Shimoyama, Jun Ichi ; Kishio, Kohji. / C-axis-correlated vortex pinning center induced by dilute Co-doping in pulsed-laser-deposition-ErBa2Cu3Oy films. In: Japanese Journal of Applied Physics, Part 2: Letters. 2006 ; Vol. 45, No. 24-28.
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