Magnetic field dependence of critical current density and microstructure in Sm1+xBa2-xCu3Oy films on metallic substrates

被引：10

作者：

Miura, Masashi ^{[1
]}

Yoshida, Yutaka

Ozaki, Toshinori

Ichino, Yusuke

Masakazu, Mutoh

Funaki, Shuhei

Takai, Yoshiaki

Matsumoto, Kaname

Ichinose, Ataru

Horii, Shigeru

Mukaida, Masashi

Awaji, Satoshi

Watanabe, Kazuo

机构：

[1] Nagoya Univ, Dept Elect Engn & Comp Sci, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Japan Sci & Technol Agcy, CREST, Kawaguchi, Japan

[3] Kyoto Univ, Dept Mat Sci & Engn, Kyoto, Japan

[4] Univ Tokyo, Dept Appl Chem, Tokyo, Japan

[5] Kyushu Univ, Dept Mat Sci & Engn, Fukuoka 812, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2007年 / 17卷 / 02期

关键词：

critical current; films; flux pinning; low temperature growth; SmBa2Cu3Oy;

D O I：

10.1109/TASC.2007.898358

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have reported high-J(c) Sm1+xBa2-xCU3Oy (SmBCO) films on single crystal MgO prepared by pulsed laser deposition (PLD). In this study, we fabricate SmBCO films on metallic substrates using low temperature growth (LTG) technique, to investigate the availability of the LTG technique for coated conductors. The LTG-SmBCO films are deposited on PLD - CeO2/IBAD - YSZ/Hastelloy tapes. The critical current density (J(c)) is 4.7 MA/cm(2) (77 K, B//c, B = 0 T) and 0.23 MA/cm(2) (77 K, B//c, B = 5 T). Furthermore, at 65 K and B = 17 T, the J(c) of LTG-SmBCO film (B//c) reaches 0.03 MA/cm(2). These values are higher than those of conventional PLD-YBCO and PLD-SmBCO films. From these results, we suggest that the LTG is an effective technique for improving the magnetic field dependence of J(c) of coated conductors.

引用

页码：3247 / 3250

页数：4

共 9 条

[1] High-performance high-Tc superconducting wires [J].

Kang, S ;

Goyal, A ;

Li, J ;

Gapud, AA ;

Martin, PM ;

Heatherly, L ;

Thompson, JR ;

Christen, DK ;

List, FA ;

Paranthaman, M ;

Lee, DF .

SCIENCE, 2006, 311 (5769) :1911-1914

[2] Strongly enhanced current densities in superconducting coated conductors of YBa2Cu3O7-x+BaZrO3 [J].

Macmanus-Driscoll, JL ;

Foltyn, SR ;

Jia, QX ;

Wang, H ;

Serquis, A ;

Civale, L ;

Maiorov, B ;

Hawley, ME ;

Maley, MP ;

Peterson, DE .

NATURE MATERIALS, 2004, 3 (07) :439-443

[3] Enhancement of flux-pinning in epitaxial Sm1+xBa2-xCU3Oy films by introduction of low-Tc nanoparticles [J].

Miura, M ;

Yoshida, Y ;

Ichino, Y ;

Takai, Y ;

Matsumoto, K ;

Ichinose, A ;

Horii, S ;

Mukaida, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2006, 45 (1-3) :L11-L13

[4] In-plane alignment and superconducting properties in high-Jc Sm1+xBa2-xCu3O6+δ thin films [J].

Miura, M ;

Itoh, M ;

Yoshida, Y ;

Ichino, Y ;

Takai, Y ;

Matsumoto, K ;

Ichinose, A ;

Horii, S ;

Mukaida, M .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2005, 426 :985-989

[5] Effect of Sm/Ba substitution on the Jc in magnetic field of SmBCO thin films by low temperature growth technique [J].

Miura, M ;

Itoh, M ;

Ichino, Y ;

Yoshida, Y ;

Takai, Y ;

Matsumoto, K ;

Ichinose, A ;

Horii, S ;

Mukaida, M .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2005, 15 (02) :3078-3081

[6] Addition of low-Tc nanoparticles dispersions to enhance flux pinning of Sm1+xBa2-xCu3Oy films [J].

Miura, Masashi ;

Ichino, Yusuke ;

Yoshida, Yutaka ;

Takai, Yoshiaki ;

Matsumoto, Kaname ;

Ichinose, Ataru ;

Horii, Shigeru ;

Mukaida, Masashi .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2006, 445 (643-647) :643-647

[7] Dislocation density and critical current density of Sm1+xBa2-xCu3Oy films prepared by various fabrication processes [J].

Miura, Masashi ;

Yoshida, Yutaka ;

Ichino, Yusuke ;

Ozaki, Toshinori ;

Takai, Yoshiaki ;

Matsumoto, Kaname ;

Ichinose, Ataru ;

Horii, Shigeru ;

Mukaida, Masashi .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2006, 45 (24-28) :L701-L704

[8]

NISHINAGA T, 1996, ADV SUPERCONDUCTIVIT, V8, P33

[9] Epitaxial nanostructure and defects effective for pinning in Y(RE)Ba2Cu3O7-x coated conductors -: art. no. 132502 [J].

Yamada, Y ;

Takahashi, K ;

Kobayashi, H ;

Konishi, M ;

Watanabe, T ;

Ibi, A ;

Muroga, T ;

Miyata, S ;

Kato, T ;

Hirayama, T ;

Shiohara, Y .

APPLIED PHYSICS LETTERS, 2005, 87 (13) :1-3

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