Enhanced critical current under a magnetic field in Sm1+xB 2-xCu3Oy thick films prepared using low-temperature growth technique

Masashi Miura, Yutaka Yoshida, Toshinori Ozaki, Yusuke Ichino, Yoshiaki Tarai, Kaname Matsumoto, Ataru Ichinose, Shigeru Horii, Masashi Mukaida

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4 Citations (Scopus)

Abstract

REBa2Cu3Oy films require a high critical current (Ic) under a high magnetic field at 77 K when using power applications. In this study, we fabricated Sm1.04Ba 1.96Cu3Oy (SmBCO) thick films prepared using a low-temperature growth (LTG) technique in order to improve crystal quality and enhance flux pinning. The LTG multilayer thick film using a (SmBCO/Sm-rich layer) × N (N = 1,2,...) multilayer system showed a high crystal quality. Additionally, the LTG multilayer thick film showed not only a high density of dislocations but also low-Tc particles within a high-Tc matrix. Therefore, the LTG multilayer film showed an Ic of 20.6 A/cm-width (77 K, B // c, B = 5 T) and had a thickness of only 1.35 μm and a low anisotropy Ic for the high-magnetic-field direction. These results support to the developing possibility of power devices using a solenoid-type coil.

Original languageEnglish
Pages (from-to)L807-L809
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume46
Issue number33-35
DOIs
Publication statusPublished - Sep 7 2007

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Critical currents
Growth temperature
Thick films
thick films
Multilayer films
critical current
Magnetic fields
magnetic fields
Flux pinning
Crystals
Solenoids
flux pinning
solenoids
crystals
Multilayers
Anisotropy
coils
anisotropy
matrices

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Enhanced critical current under a magnetic field in Sm1+xB 2-xCu3Oy thick films prepared using low-temperature growth technique. / Miura, Masashi; Yoshida, Yutaka; Ozaki, Toshinori; Ichino, Yusuke; Tarai, Yoshiaki; Matsumoto, Kaname; Ichinose, Ataru; Horii, Shigeru; Mukaida, Masashi.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 46, No. 33-35, 07.09.2007, p. L807-L809.

Research output: Contribution to journalArticle

Miura, Masashi ; Yoshida, Yutaka ; Ozaki, Toshinori ; Ichino, Yusuke ; Tarai, Yoshiaki ; Matsumoto, Kaname ; Ichinose, Ataru ; Horii, Shigeru ; Mukaida, Masashi. / Enhanced critical current under a magnetic field in Sm1+xB 2-xCu3Oy thick films prepared using low-temperature growth technique. In: Japanese Journal of Applied Physics, Part 2: Letters. 2007 ; Vol. 46, No. 33-35. pp. L807-L809.
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AU - Yoshida, Yutaka

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AU - Ichino, Yusuke

AU - Tarai, Yoshiaki

AU - Matsumoto, Kaname

AU - Ichinose, Ataru

AU - Horii, Shigeru

AU - Mukaida, Masashi

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