Addition of low-Tc nanoparticles dispersions to enhance flux pinning of Sm1+xBa2-xCu3Oy films

Masashi Miura; Yusuke Ichino; Yutaka Yoshida; Yoshiaki Takai; Kaname Matsumoto; Ataru Ichinose; Shigeru Horii; Masashi Mukaida

doi:10.1016/j.physc.2006.04.060

Addition of low-T_c nanoparticles dispersions to enhance flux pinning of Sm_1+xBa_2-xCu₃O_y films

Masashi Miura, Yusuke Ichino, Yutaka Yoshida, Yoshiaki Takai, Kaname Matsumoto, Ataru Ichinose, Shigeru Horii, Masashi Mukaida

Advanced Materials Physics

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

9 Citations (Scopus)

Abstract

We have fabricated epitaxial films of high-J_c SmBCO using a low-temperature growth technique (LTG). The angular dependence of J_c and composition analysis showed that the LTG-SmBCO films included nanosize low-T_c phases within the high-T_c matrix, the LTG-SmBCO films showed J_c = 0.28 MA/cm² (77 K, B∥c, B = 5 T). However, number density of low-T_c phase is still less than the amount which is desired for complete flux-pinning at high-magnetic field. We deposited LTG-SmBCO including 1.4-2.8 vol.% of low-T_c nanoparticles. The films with 1.4 vol.% nanoparticles showed J_c = 0.37 MA/cm² (77 K, B∥c, B = 5 T) and 0.10 MA/cm² (77 K, B∥c, B = 8 T). We speculated that the behaviors of the J_c-B at high-magnetic field depend not only on distribution and size of low-T_c regions, but also the Sm/Ba composition within the low-T_c regions.

Original language	English
Pages (from-to)	643-647
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	445-448
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physc.2006.04.060
Publication status	Published - Oct 1 2006

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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Addition of low-T_c nanoparticles dispersions to enhance flux pinning of Sm_1+xBa_2-xCu₃O_y films. / Miura, Masashi; Ichino, Yusuke; Yoshida, Yutaka; Takai, Yoshiaki; Matsumoto, Kaname; Ichinose, Ataru; Horii, Shigeru; Mukaida, Masashi.

In: Physica C: Superconductivity and its applications, Vol. 445-448, No. 1-2, 01.10.2006, p. 643-647.

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

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abstract = "We have fabricated epitaxial films of high-Jc SmBCO using a low-temperature growth technique (LTG). The angular dependence of Jc and composition analysis showed that the LTG-SmBCO films included nanosize low-Tc phases within the high-Tc matrix, the LTG-SmBCO films showed Jc = 0.28 MA/cm2 (77 K, B∥c, B = 5 T). However, number density of low-Tc phase is still less than the amount which is desired for complete flux-pinning at high-magnetic field. We deposited LTG-SmBCO including 1.4-2.8 vol.% of low-Tc nanoparticles. The films with 1.4 vol.% nanoparticles showed Jc = 0.37 MA/cm2 (77 K, B∥c, B = 5 T) and 0.10 MA/cm2 (77 K, B∥c, B = 8 T). We speculated that the behaviors of the Jc-B at high-magnetic field depend not only on distribution and size of low-Tc regions, but also the Sm/Ba composition within the low-Tc regions.",

author = "Masashi Miura and Yusuke Ichino and Yutaka Yoshida and Yoshiaki Takai and Kaname Matsumoto and Ataru Ichinose and Shigeru Horii and Masashi Mukaida",

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AU - Miura, Masashi

AU - Ichino, Yusuke

AU - Yoshida, Yutaka

AU - Takai, Yoshiaki

AU - Matsumoto, Kaname

AU - Ichinose, Ataru

AU - Horii, Shigeru

AU - Mukaida, Masashi

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N2 - We have fabricated epitaxial films of high-Jc SmBCO using a low-temperature growth technique (LTG). The angular dependence of Jc and composition analysis showed that the LTG-SmBCO films included nanosize low-Tc phases within the high-Tc matrix, the LTG-SmBCO films showed Jc = 0.28 MA/cm2 (77 K, B∥c, B = 5 T). However, number density of low-Tc phase is still less than the amount which is desired for complete flux-pinning at high-magnetic field. We deposited LTG-SmBCO including 1.4-2.8 vol.% of low-Tc nanoparticles. The films with 1.4 vol.% nanoparticles showed Jc = 0.37 MA/cm2 (77 K, B∥c, B = 5 T) and 0.10 MA/cm2 (77 K, B∥c, B = 8 T). We speculated that the behaviors of the Jc-B at high-magnetic field depend not only on distribution and size of low-Tc regions, but also the Sm/Ba composition within the low-Tc regions.

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