An attempt to arrange bzo nanorods into erbco thin films

Takatoshi Yoshimoto, G. Goto, Masashi Mukaida, R. Terasnishi, N. Mori, K. Yamada, S. Funaki, Y. Yoshida, A. Ichinose, K. Matsumoto, S. Horii, R. Kita

Research output: Contribution to journalArticle

Abstract

We arrayed BaZrO 3 (BZO) nanorods as artificial pinning centers (APCs) into ErBa 2 Cu 3 O 7-s (ErBCO) thin films to obtain a higher critical current density (J c ) in a magnetic field. In order to array BZO nanorods in ErBCO thin films, Zr nanoislands were put on (STO) substrates as seeds for BZO nanorod growth by using an electron beam lithography (EBL) process, a pulsed laser deposition (PLD) method and a lift off process. After that, we grew ErBCO thin films with BZO nanorods by the PLD method. The Zr nanoislands, arrayed on the STO substrates, were successfully observed by atomic force microscopy (AFM). The Zr nanoislands were 60∼70 nm in diameter and 2∼3 nm in height. Density of the Zr nanoislands was 27.7μm -2 . Through structural analysis using X-ray diffraction and transmission electron microscopy (TEM) observation, it was confirmed that the ErBCO thin films had c-axis orientation with BZO nanorods. After oxygen annealing process, a critical temperature (T c ) of the film was 88.7 K. J c measurement of the film in a magnetic field revealed that J c deterioration was suppressed by introduction of the BZO nanorods. However, a J c increase at the approximate maT c hing field was not confirmed at around calculated from density of the Zr nanoislands.

Original languageEnglish
Article number5153182
Pages (from-to)3420-3422
Number of pages3
JournalIEEE Transactions on Applied Superconductivity
Volume19
Issue number3
DOIs
Publication statusPublished - Jun 1 2009

Fingerprint

Nanorods
nanorods
Thin films
thin films
Pulsed laser deposition
pulsed laser deposition
Magnetic fields
Electron beam lithography
Substrates
deterioration
structural analysis
magnetic fields
Structural analysis
Deterioration
Seed
seeds
Atomic force microscopy
critical current
critical temperature
lithography

All Science Journal Classification (ASJC) codes

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

Cite this

Yoshimoto, T., Goto, G., Mukaida, M., Terasnishi, R., Mori, N., Yamada, K., ... Kita, R. (2009). An attempt to arrange bzo nanorods into erbco thin films. IEEE Transactions on Applied Superconductivity, 19(3), 3420-3422. [5153182]. https://doi.org/10.1109/TASC.2009.2018759

An attempt to arrange bzo nanorods into erbco thin films. / Yoshimoto, Takatoshi; Goto, G.; Mukaida, Masashi; Terasnishi, R.; Mori, N.; Yamada, K.; Funaki, S.; Yoshida, Y.; Ichinose, A.; Matsumoto, K.; Horii, S.; Kita, R.

In: IEEE Transactions on Applied Superconductivity, Vol. 19, No. 3, 5153182, 01.06.2009, p. 3420-3422.

Research output: Contribution to journalArticle

Yoshimoto, T, Goto, G, Mukaida, M, Terasnishi, R, Mori, N, Yamada, K, Funaki, S, Yoshida, Y, Ichinose, A, Matsumoto, K, Horii, S & Kita, R 2009, 'An attempt to arrange bzo nanorods into erbco thin films', IEEE Transactions on Applied Superconductivity, vol. 19, no. 3, 5153182, pp. 3420-3422. https://doi.org/10.1109/TASC.2009.2018759
Yoshimoto, Takatoshi ; Goto, G. ; Mukaida, Masashi ; Terasnishi, R. ; Mori, N. ; Yamada, K. ; Funaki, S. ; Yoshida, Y. ; Ichinose, A. ; Matsumoto, K. ; Horii, S. ; Kita, R. / An attempt to arrange bzo nanorods into erbco thin films. In: IEEE Transactions on Applied Superconductivity. 2009 ; Vol. 19, No. 3. pp. 3420-3422.
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