Control of Y2O3 nanoislands deposition parameters in order to induce defects formation and its influence on the critical current density of YBCO films

P. Mele; K. Matsumoto; T. Horide; O. Miura; A. Ichinose; M. Mukaida; Y. Yoshida; S. Horii

doi:10.1016/j.physc.2005.03.043

Control of Y₂O₃ nanoislands deposition parameters in order to induce defects formation and its influence on the critical current density of YBCO films

P. Mele, K. Matsumoto, T. Horide, O. Miura, A. Ichinose, M. Mukaida, Y. Yoshida, S. Horii

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

We successfully introduced high-density linear defects as artificial pinning centers (APCs) of the quantized vortices into YBCO films, during the film deposition procedure. APCs were introduced perpendicular to the film surface by using the distributed nanosized Y₂O₃ islands prepared on SrTiO₃(1 0 0) substrates. It is possible to induce strong changes on the shape and density of the Y₂O₃ islands by varying the deposition conditions. The highest Y₂O₃ islands density, 226/μm², was obtained with fifteen laser pulses at 800 °C of substrate temperature. Even if only 10% of the induced defects act as effective pinning centers, J_c of YBCO film grown on the Y ₂O₃ nanoislands/SrTiO₃ substrate increased to 1.8 × 10⁷ A/cm² (20 K, B∥c, 0 T), which is 1.5 times higher than that of the pure YBCO film.

Original language	English
Pages (from-to)	1108-1112
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	II
DOIs	https://doi.org/10.1016/j.physc.2005.03.043
Publication status	Published - 2005
Event	Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity - Duration: Nov 23 2004 → Nov 25 2004

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.2005.03.043

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Mele, P., Matsumoto, K., Horide, T., Miura, O., Ichinose, A., Mukaida, M., Yoshida, Y., & Horii, S. (2005). Control of Y₂O₃ nanoislands deposition parameters in order to induce defects formation and its influence on the critical current density of YBCO films. Physica C: Superconductivity and its applications, 426-431(II), 1108-1112. https://doi.org/10.1016/j.physc.2005.03.043

Control of Y₂O₃ nanoislands deposition parameters in order to induce defects formation and its influence on the critical current density of YBCO films. / Mele, P.; Matsumoto, K.; Horide, T. et al.
In: Physica C: Superconductivity and its applications, Vol. 426-431, No. II, 2005, p. 1108-1112.

Research output: Contribution to journal › Conference article › peer-review

Mele, P, Matsumoto, K, Horide, T, Miura, O, Ichinose, A, Mukaida, M, Yoshida, Y & Horii, S 2005, 'Control of Y₂O₃ nanoislands deposition parameters in order to induce defects formation and its influence on the critical current density of YBCO films', Physica C: Superconductivity and its applications, vol. 426-431, no. II, pp. 1108-1112. https://doi.org/10.1016/j.physc.2005.03.043

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title = "Control of Y2O3 nanoislands deposition parameters in order to induce defects formation and its influence on the critical current density of YBCO films",

abstract = "We successfully introduced high-density linear defects as artificial pinning centers (APCs) of the quantized vortices into YBCO films, during the film deposition procedure. APCs were introduced perpendicular to the film surface by using the distributed nanosized Y2O3 islands prepared on SrTiO3(1 0 0) substrates. It is possible to induce strong changes on the shape and density of the Y2O3 islands by varying the deposition conditions. The highest Y2O3 islands density, 226/μm2, was obtained with fifteen laser pulses at 800 °C of substrate temperature. Even if only 10% of the induced defects act as effective pinning centers, Jc of YBCO film grown on the Y 2O3 nanoislands/SrTiO3 substrate increased to 1.8 × 107 A/cm2 (20 K, B∥c, 0 T), which is 1.5 times higher than that of the pure YBCO film.",

author = "P. Mele and K. Matsumoto and T. Horide and O. Miura and A. Ichinose and M. Mukaida and Y. Yoshida and S. Horii",

note = "Funding Information: P.M. acknowledges the Japanese Society for the Promotion of Science (JSPS) for fellowship No. P03852.; Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

year = "2005",

doi = "10.1016/j.physc.2005.03.043",

language = "English",

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T1 - Control of Y2O3 nanoislands deposition parameters in order to induce defects formation and its influence on the critical current density of YBCO films

AU - Mele, P.

AU - Matsumoto, K.

AU - Horide, T.

AU - Miura, O.

AU - Ichinose, A.

AU - Mukaida, M.

AU - Yoshida, Y.

AU - Horii, S.

N1 - Funding Information: P.M. acknowledges the Japanese Society for the Promotion of Science (JSPS) for fellowship No. P03852.

PY - 2005

Y1 - 2005

N2 - We successfully introduced high-density linear defects as artificial pinning centers (APCs) of the quantized vortices into YBCO films, during the film deposition procedure. APCs were introduced perpendicular to the film surface by using the distributed nanosized Y2O3 islands prepared on SrTiO3(1 0 0) substrates. It is possible to induce strong changes on the shape and density of the Y2O3 islands by varying the deposition conditions. The highest Y2O3 islands density, 226/μm2, was obtained with fifteen laser pulses at 800 °C of substrate temperature. Even if only 10% of the induced defects act as effective pinning centers, Jc of YBCO film grown on the Y 2O3 nanoislands/SrTiO3 substrate increased to 1.8 × 107 A/cm2 (20 K, B∥c, 0 T), which is 1.5 times higher than that of the pure YBCO film.

AB - We successfully introduced high-density linear defects as artificial pinning centers (APCs) of the quantized vortices into YBCO films, during the film deposition procedure. APCs were introduced perpendicular to the film surface by using the distributed nanosized Y2O3 islands prepared on SrTiO3(1 0 0) substrates. It is possible to induce strong changes on the shape and density of the Y2O3 islands by varying the deposition conditions. The highest Y2O3 islands density, 226/μm2, was obtained with fifteen laser pulses at 800 °C of substrate temperature. Even if only 10% of the induced defects act as effective pinning centers, Jc of YBCO film grown on the Y 2O3 nanoislands/SrTiO3 substrate increased to 1.8 × 107 A/cm2 (20 K, B∥c, 0 T), which is 1.5 times higher than that of the pure YBCO film.

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ER -

Control of Y₂O₃ nanoislands deposition parameters in order to induce defects formation and its influence on the critical current density of YBCO films

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