Enhanced high-field performance in PLD films fabricated by ablation of YSZ-added YBa2Cu3O7-x target

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

doi:10.1088/0953-2048/20/3/023

Enhanced high-field performance in PLD films fabricated by ablation of YSZ-added YBa₂Cu₃O_7-x target

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

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

62 Citations (Scopus)

Abstract

YBa₂Cu₃O_7-x+Y₂O ₃-stabilized ZrO₂ (YBCO+YSZ) mixed films were prepared on SrTiO₃/MgO substrates by pulsed-laser deposition from a YBCO target with a thin YSZ sector on top. The J_c at 77K for the mixed YBCO+YSZ thin film was enhanced. The J_c at 77K for the pure film and the mixed YBCO+YSZ thin film were 1.46 and 1.95MAcm^-2 (self field) (and 0.09 and 0.28MAcm^-2 (, B ≤ 5T)), respectively, even when both films were prepared using the same deposition conditions. The maximum pinning force of a doped film (77K, ) was 15.9GNm^-3, which is comparable to the value reached by NbTi at 4.2K. In the YSZ-added sample, the angular dependence of J_c showed a broad peak at due to the flux pinning by the c-axis correlated defects. Elongated nanorods grown parallel to the c axis were consistently observed in the cross-sectional TEM images.

Original language	English
Article number	023
Pages (from-to)	244-250
Number of pages	7
Journal	Superconductor Science and Technology
Volume	20
Issue number	3
DOIs	https://doi.org/10.1088/0953-2048/20/3/023
Publication status	Published - 2007 Mar 1
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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title = "Enhanced high-field performance in PLD films fabricated by ablation of YSZ-added YBa2Cu3O7-x target",

abstract = "YBa2Cu3O7-x+Y2O 3-stabilized ZrO2 (YBCO+YSZ) mixed films were prepared on SrTiO3/MgO substrates by pulsed-laser deposition from a YBCO target with a thin YSZ sector on top. The Jc at 77K for the mixed YBCO+YSZ thin film was enhanced. The Jc at 77K for the pure film and the mixed YBCO+YSZ thin film were 1.46 and 1.95MAcm-2 (self field) (and 0.09 and 0.28MAcm-2 (, B ≤ 5T)), respectively, even when both films were prepared using the same deposition conditions. The maximum pinning force of a doped film (77K, ) was 15.9GNm-3, which is comparable to the value reached by NbTi at 4.2K. In the YSZ-added sample, the angular dependence of Jc showed a broad peak at due to the flux pinning by the c-axis correlated defects. Elongated nanorods grown parallel to the c axis were consistently observed in the cross-sectional TEM images.",

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

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doi = "10.1088/0953-2048/20/3/023",

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T1 - Enhanced high-field performance in PLD films fabricated by ablation of YSZ-added YBa2Cu3O7-x target

AU - Mele, P.

AU - Matsumoto, K.

AU - Horide, T.

AU - Ichinose, A.

AU - Mukaida, M.

AU - Yoshida, Y.

AU - Horii, S.

PY - 2007/3/1

Y1 - 2007/3/1

N2 - YBa2Cu3O7-x+Y2O 3-stabilized ZrO2 (YBCO+YSZ) mixed films were prepared on SrTiO3/MgO substrates by pulsed-laser deposition from a YBCO target with a thin YSZ sector on top. The Jc at 77K for the mixed YBCO+YSZ thin film was enhanced. The Jc at 77K for the pure film and the mixed YBCO+YSZ thin film were 1.46 and 1.95MAcm-2 (self field) (and 0.09 and 0.28MAcm-2 (, B ≤ 5T)), respectively, even when both films were prepared using the same deposition conditions. The maximum pinning force of a doped film (77K, ) was 15.9GNm-3, which is comparable to the value reached by NbTi at 4.2K. In the YSZ-added sample, the angular dependence of Jc showed a broad peak at due to the flux pinning by the c-axis correlated defects. Elongated nanorods grown parallel to the c axis were consistently observed in the cross-sectional TEM images.

AB - YBa2Cu3O7-x+Y2O 3-stabilized ZrO2 (YBCO+YSZ) mixed films were prepared on SrTiO3/MgO substrates by pulsed-laser deposition from a YBCO target with a thin YSZ sector on top. The Jc at 77K for the mixed YBCO+YSZ thin film was enhanced. The Jc at 77K for the pure film and the mixed YBCO+YSZ thin film were 1.46 and 1.95MAcm-2 (self field) (and 0.09 and 0.28MAcm-2 (, B ≤ 5T)), respectively, even when both films were prepared using the same deposition conditions. The maximum pinning force of a doped film (77K, ) was 15.9GNm-3, which is comparable to the value reached by NbTi at 4.2K. In the YSZ-added sample, the angular dependence of Jc showed a broad peak at due to the flux pinning by the c-axis correlated defects. Elongated nanorods grown parallel to the c axis were consistently observed in the cross-sectional TEM images.

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Enhanced high-field performance in PLD films fabricated by ablation of YSZ-added YBa₂Cu₃O_7-x target

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