High-critical-current-density SmBa2Cu3O7-x films induced by surface nanoparticle

被引：45

作者：

Yoshida, Y ^{[1
]}

Matsumoto, K

Miura, M

Ichino, Y

Takao, Y

Ichinose, A

Horii, S

Mukaida, M

机构：

[1] Nagoya Univ, Dept Energy & Sci, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan

[3] Cent Res Inst Elect Power Ind, Elect Power Engn Res Lab, Yokosuka, Kanagawa 2400196, Japan

[4] Univ Tokyo, Dept Superconductiv, Bunkyo Ku, Tokyo 1138586, Japan

[5] Yamagata Univ, Dept Elect & Informat Engn, Yonezawa, Yamagata 9928510, Japan

[6] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2005年 / 44卷 / 16-19期

关键词：

REBa2Cu3O7-x; film; J(c)-B; pinning center; nanoparticle; coated conductor;

D O I：

10.1143/JJAP.44.L546

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In oxide-based superconducting thin films, conceivable factors that give rise to a pinning center include dislocations, precipitates, twin boundaries, and a-axis-oriented phases. In this study, crystalline defects were created perpendicular to a high-J(c) Sm1+xBa2-xCu3Oy film surface during a film deposition process. We obtained extremely high J(c) values, J(c) = 0.37 MA/cm(2) (77K, B // c, B = 5T) and J(c) = 0. 1 MA/cm(2) (77K, B // c, B = 8T). These values are equal to or exceed that of the previously reported NbTi wire material measured in a high magnetic field at 4.2 K.

引用

页码：L546 / L548

页数：3

共 10 条

[1] Properties of in-situ laser-pulsed deposited YBCO thin films on MgO with SrTiO3 buffer layer [J].

Boffa, V ;

Petrisor, T ;

Ciontea, L ;

Gambardella, U ;

Barbanera, S .

PHYSICA C, 1996, 260 (1-2) :111-116

[2] Addition of nanoparticle dispersions to enhance flux pinning of the YBa2Cu3O7-x superconductor [J].

Haugan, T ;

Barnes, PN ;

Wheeler, R ;

Meisenkothen, F ;

Sumption, M .

NATURE, 2004, 430 (7002) :867-870

[3] High-temperature-superconductor coated conductors: technical progress in Japan [J].

Iijima, Y ;

Matsumoto, K .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2000, 13 (01) :68-81

[4]

ITHO M, 2004, PHYSICA C, V412, P833

[5] High-Tc superconducting materials for electric power applications [J].

Larbalestier, D ;

Gurevich, A ;

Feldmann, DM ;

Polyanskii, A .

NATURE, 2001, 414 (6861) :368-377

[6] 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

[7] Critical current control in YBa2CU3O7-δ films using artificial pinning centers [J].

Matsumoto, K ;

Horide, T ;

Ichinose, A ;

Horii, S ;

Yoshida, Y ;

Mukaida, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2005, 44 (1-7) :L246-L248

[8] QUANTITATIVE DESCRIPTION OF A VERY HIGH CRITICAL CURRENT-DENSITY NB-TI SUPERCONDUCTOR DURING ITS FINAL OPTIMIZATION STRAIN .2. FLUX PINNING MECHANISMS [J].

MEINGAST, C ;

LARBALESTIER, DC .

JOURNAL OF APPLIED PHYSICS, 1989, 66 (12) :5971-5983

[9] Magnetic field dependence of critical current density in Sm1+xBa2-xCu3O6+δ films prepared by pulsed laser deposition [J].

Sudoh, K ;

Ichino, Y ;

Yoshida, Y ;

Takai, Y ;

Hirabayashi, I .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2003, 13 (02) :2795-2798

[10] High-critical-current-density epitaxial films of SmBa2Cu3O7-x in high fields [J].

Yoshida, Y ;

Matsumoto, K ;

Ichino, Y ;

Itoh, M ;

Ichinose, A ;

Horii, S ;

Mukaida, M ;

Takai, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2005, 44 (1-7) :L129-L132

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