Effects of growth temperature for superconducting properties and microstructures of PLD-ErBa2Cu3O7-δ film with BaNb2O6

H. Kai, Masashi Mukaida, Ryo Teranishi, N. Mori, K. Yamada, S. Horii, A. Ichinose, R. Kita, K. Matsumoto, Y. Yoshida, S. Awaji, K. Watanabe, M. Namba, T. Fujiyoshi

Research output: Contribution to journalArticle

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Abstract

We report effects of growth temperature on superconducting properties and microstructure of ErBa2Cu3O7-δ (ErBCO) films with BaNb2O6 (BNO)-doping grown by pulse laser deposition (PLD) on SrTiO3 (STO) substrates. The BNO was introduced into the ErBCO films as artificial pinning centers. X-ray diffraction analysis indicated the high orientation of both c-axis and in-plane for the obtained BNO-doped ErBCO (BNO + ErBCO) films. Ba(Er0.5Nb0.5)O3 (BENO) nanorods were observed clearly in transmission electron microscopy (TEM) images of the BNO + ErBCO films. The BENO nanorod was thinner with decreasing the growth temperature. The BNO + ErBCO films showed higher critical current density (JC) than that of a pure ErBCO film in a magnetic field (H) in H∥c-axis, indicating that BENO nanorods played as c-axis correlated pinning centers. Furthermore, we found a tendency that JC of the BNO + ErBCO films were enhanced with decreasing the growth temperature. Consequently, the pinning effect of the introduced BENO was controlled by the optimization of growth condition such as growth temperature.

Original languageEnglish
Pages (from-to)1854-1857
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume468
Issue number15-20
DOIs
Publication statusPublished - Sep 15 2008

Fingerprint

laser deposition
Growth temperature
Laser pulses
microstructure
Microstructure
pulses
Nanorods
nanorods
temperature
X ray diffraction analysis
critical current
tendencies
Doping (additives)
Magnetic fields
current density
Transmission electron microscopy
transmission electron microscopy
optimization
Substrates
diffraction

All Science Journal Classification (ASJC) codes

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

Cite this

Effects of growth temperature for superconducting properties and microstructures of PLD-ErBa2Cu3O7-δ film with BaNb2O6. / Kai, H.; Mukaida, Masashi; Teranishi, Ryo; Mori, N.; Yamada, K.; Horii, S.; Ichinose, A.; Kita, R.; Matsumoto, K.; Yoshida, Y.; Awaji, S.; Watanabe, K.; Namba, M.; Fujiyoshi, T.

In: Physica C: Superconductivity and its Applications, Vol. 468, No. 15-20, 15.09.2008, p. 1854-1857.

Research output: Contribution to journalArticle

Kai, H, Mukaida, M, Teranishi, R, Mori, N, Yamada, K, Horii, S, Ichinose, A, Kita, R, Matsumoto, K, Yoshida, Y, Awaji, S, Watanabe, K, Namba, M & Fujiyoshi, T 2008, 'Effects of growth temperature for superconducting properties and microstructures of PLD-ErBa2Cu3O7-δ film with BaNb2O6', Physica C: Superconductivity and its Applications, vol. 468, no. 15-20, pp. 1854-1857. https://doi.org/10.1016/j.physc.2008.05.100
Kai, H. ; Mukaida, Masashi ; Teranishi, Ryo ; Mori, N. ; Yamada, K. ; Horii, S. ; Ichinose, A. ; Kita, R. ; Matsumoto, K. ; Yoshida, Y. ; Awaji, S. ; Watanabe, K. ; Namba, M. ; Fujiyoshi, T. / Effects of growth temperature for superconducting properties and microstructures of PLD-ErBa2Cu3O7-δ film with BaNb2O6. In: Physica C: Superconductivity and its Applications. 2008 ; Vol. 468, No. 15-20. pp. 1854-1857.
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AU - Mukaida, Masashi

AU - Teranishi, Ryo

AU - Mori, N.

AU - Yamada, K.

AU - Horii, S.

AU - Ichinose, A.

AU - Kita, R.

AU - Matsumoto, K.

AU - Yoshida, Y.

AU - Awaji, S.

AU - Watanabe, K.

AU - Namba, M.

AU - Fujiyoshi, T.

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AB - We report effects of growth temperature on superconducting properties and microstructure of ErBa2Cu3O7-δ (ErBCO) films with BaNb2O6 (BNO)-doping grown by pulse laser deposition (PLD) on SrTiO3 (STO) substrates. The BNO was introduced into the ErBCO films as artificial pinning centers. X-ray diffraction analysis indicated the high orientation of both c-axis and in-plane for the obtained BNO-doped ErBCO (BNO + ErBCO) films. Ba(Er0.5Nb0.5)O3 (BENO) nanorods were observed clearly in transmission electron microscopy (TEM) images of the BNO + ErBCO films. The BENO nanorod was thinner with decreasing the growth temperature. The BNO + ErBCO films showed higher critical current density (JC) than that of a pure ErBCO film in a magnetic field (H) in H∥c-axis, indicating that BENO nanorods played as c-axis correlated pinning centers. Furthermore, we found a tendency that JC of the BNO + ErBCO films were enhanced with decreasing the growth temperature. Consequently, the pinning effect of the introduced BENO was controlled by the optimization of growth condition such as growth temperature.

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