Enhancement of critical current density of YBCO films by introduction of artificial pinning centers due to the distributed nano-scaled Y 2O3 islands on substrates

Kaname Matsumoto; Tomoya Horide; Kozo Osamura; Masashi Mukaida; Yutaka Yoshida; Ataru Ichinose; Shigeru Horii

doi:10.1016/j.physc.2004.01.157

Enhancement of critical current density of YBCO films by introduction of artificial pinning centers due to the distributed nano-scaled Y ₂O₃ islands on substrates

Kaname Matsumoto, Tomoya Horide, Kozo Osamura, Masashi Mukaida, Yutaka Yoshida, Ataru Ichinose, Shigeru Horii

Research output: Contribution to journal › Article › peer-review

120 Citations (Scopus)

Abstract

We introduced high-density extended crystalline defects, which result in artificial pinning centers of the quantized vortices, into c-axis oriented YBa₂Cu₃O_7-x (YBCO) films. The crystalline defects created perpendicular to the film surface were derived, during the film deposition process, by the distributed nano-sized Y₂O₃ islands prepared on SrTiO₃ (100) substrates. The Y₂O ₃ nano-islands were approximately 3 nm in height and 25 nm in diameter and the density was controlled from about 89 to 212 μm^-2 by choosing the Y₂O₃ deposition condition. J_cs of YBCO films grown on SrTiO₃ substrates with the extended defects were increased by about 150% higher than those of YBCO films without the defects.

Original language	English
Pages (from-to)	1267-1271
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2004.01.157
Publication status	Published - Oct 1 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1016/j.physc.2004.01.157

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Matsumoto, K., Horide, T., Osamura, K., Mukaida, M., Yoshida, Y., Ichinose, A., & Horii, S. (2004). Enhancement of critical current density of YBCO films by introduction of artificial pinning centers due to the distributed nano-scaled Y ₂O₃ islands on substrates. Physica C: Superconductivity and its applications, 412-414(SPEC. ISS.), 1267-1271. https://doi.org/10.1016/j.physc.2004.01.157

Enhancement of critical current density of YBCO films by introduction of artificial pinning centers due to the distributed nano-scaled Y ₂O₃ islands on substrates. / Matsumoto, Kaname; Horide, Tomoya; Osamura, Kozo et al.
In: Physica C: Superconductivity and its applications, Vol. 412-414, No. SPEC. ISS., 01.10.2004, p. 1267-1271.

Research output: Contribution to journal › Article › peer-review

Matsumoto, K, Horide, T, Osamura, K, Mukaida, M, Yoshida, Y, Ichinose, A & Horii, S 2004, 'Enhancement of critical current density of YBCO films by introduction of artificial pinning centers due to the distributed nano-scaled Y ₂O₃ islands on substrates', Physica C: Superconductivity and its applications, vol. 412-414, no. SPEC. ISS., pp. 1267-1271. https://doi.org/10.1016/j.physc.2004.01.157

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title = "Enhancement of critical current density of YBCO films by introduction of artificial pinning centers due to the distributed nano-scaled Y 2O3 islands on substrates",

abstract = "We introduced high-density extended crystalline defects, which result in artificial pinning centers of the quantized vortices, into c-axis oriented YBa2Cu3O7-x (YBCO) films. The crystalline defects created perpendicular to the film surface were derived, during the film deposition process, by the distributed nano-sized Y2O3 islands prepared on SrTiO3 (100) substrates. The Y2O 3 nano-islands were approximately 3 nm in height and 25 nm in diameter and the density was controlled from about 89 to 212 μm-2 by choosing the Y2O3 deposition condition. Jcs of YBCO films grown on SrTiO3 substrates with the extended defects were increased by about 150% higher than those of YBCO films without the defects.",

author = "Kaname Matsumoto and Tomoya Horide and Kozo Osamura and Masashi Mukaida and Yutaka Yoshida and Ataru Ichinose and Shigeru Horii",

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AU - Matsumoto, Kaname

AU - Horide, Tomoya

AU - Osamura, Kozo

AU - Mukaida, Masashi

AU - Yoshida, Yutaka

AU - Ichinose, Ataru

AU - Horii, Shigeru

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AB - We introduced high-density extended crystalline defects, which result in artificial pinning centers of the quantized vortices, into c-axis oriented YBa2Cu3O7-x (YBCO) films. The crystalline defects created perpendicular to the film surface were derived, during the film deposition process, by the distributed nano-sized Y2O3 islands prepared on SrTiO3 (100) substrates. The Y2O 3 nano-islands were approximately 3 nm in height and 25 nm in diameter and the density was controlled from about 89 to 212 μm-2 by choosing the Y2O3 deposition condition. Jcs of YBCO films grown on SrTiO3 substrates with the extended defects were increased by about 150% higher than those of YBCO films without the defects.

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Enhancement of critical current density of YBCO films by introduction of artificial pinning centers due to the distributed nano-scaled Y ₂O₃ islands on substrates

Abstract

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