YBa2Cu3O7-x + YSZ mixed films with enhanced critical current densities in magnetic field

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

doi:10.1016/j.physc.2007.02.026

YBa₂Cu₃O_7-x + YSZ mixed films with enhanced critical current densities in magnetic field

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

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

2 Citations (Scopus)

Abstract

YBa₂Cu₃O_7-x + YSZ (YBCO + YSZ) mixed films were prepared on SrTiO₃/MgO substrates by pulsed laser deposition (PLD) from a YBCO target with thin YSZ sector on the top of the target. In comparison with a pure YBCO film, the J_c at 77 K for mixed YBCO + YSZ thin film was enhanced from 1.46 MA/cm² to 1.95 MA/cm² (self-field) and from 0.09 MA/cm² to 0.28 MA/cm² (B_∥c, B = 5 T) even when both films were prepared on the same deposition conditions. In the YSZ-added sample, the angular dependence of J_c shows a broad peak at B_∥c, due to the flux pinning by c-axis correlated defects. Consistently, elongated nanorods grown in the direction parallel to c-axis were observed in cross-sectional TEM images.

Original language	English
Pages (from-to)	653-656
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	463-465
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.physc.2007.02.026
Publication status	Published - Oct 1 2007

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.2007.02.026

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title = "YBa2Cu3O7-x + YSZ mixed films with enhanced critical current densities in magnetic field",

abstract = "YBa2Cu3O7-x + YSZ (YBCO + YSZ) mixed films were prepared on SrTiO3/MgO substrates by pulsed laser deposition (PLD) from a YBCO target with thin YSZ sector on the top of the target. In comparison with a pure YBCO film, the Jc at 77 K for mixed YBCO + YSZ thin film was enhanced from 1.46 MA/cm2 to 1.95 MA/cm2 (self-field) and from 0.09 MA/cm2 to 0.28 MA/cm2 (B∥c, B = 5 T) even when both films were prepared on the same deposition conditions. In the YSZ-added sample, the angular dependence of Jc shows a broad peak at B∥c, due to the flux pinning by c-axis correlated defects. Consistently, elongated nanorods grown in the direction parallel to c-axis were observed in 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",

year = "2007",

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doi = "10.1016/j.physc.2007.02.026",

language = "English",

volume = "463-465",

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journal = "Physica C: Superconductivity and its applications",

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T1 - YBa2Cu3O7-x + YSZ mixed films with enhanced critical current densities in magnetic field

AU - Mele, P.

AU - Matsumoto, K.

AU - Horide, T.

AU - Ichinose, A.

AU - Mukaida, M.

AU - Yoshida, Y.

AU - Horii, S.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - YBa2Cu3O7-x + YSZ (YBCO + YSZ) mixed films were prepared on SrTiO3/MgO substrates by pulsed laser deposition (PLD) from a YBCO target with thin YSZ sector on the top of the target. In comparison with a pure YBCO film, the Jc at 77 K for mixed YBCO + YSZ thin film was enhanced from 1.46 MA/cm2 to 1.95 MA/cm2 (self-field) and from 0.09 MA/cm2 to 0.28 MA/cm2 (B∥c, B = 5 T) even when both films were prepared on the same deposition conditions. In the YSZ-added sample, the angular dependence of Jc shows a broad peak at B∥c, due to the flux pinning by c-axis correlated defects. Consistently, elongated nanorods grown in the direction parallel to c-axis were observed in cross-sectional TEM images.

AB - YBa2Cu3O7-x + YSZ (YBCO + YSZ) mixed films were prepared on SrTiO3/MgO substrates by pulsed laser deposition (PLD) from a YBCO target with thin YSZ sector on the top of the target. In comparison with a pure YBCO film, the Jc at 77 K for mixed YBCO + YSZ thin film was enhanced from 1.46 MA/cm2 to 1.95 MA/cm2 (self-field) and from 0.09 MA/cm2 to 0.28 MA/cm2 (B∥c, B = 5 T) even when both films were prepared on the same deposition conditions. In the YSZ-added sample, the angular dependence of Jc shows a broad peak at B∥c, due to the flux pinning by c-axis correlated defects. Consistently, elongated nanorods grown in the direction parallel to c-axis were observed in cross-sectional TEM images.

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - SUPPL.

ER -

YBa₂Cu₃O_7-x + YSZ mixed films with enhanced critical current densities in magnetic field

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