Ultra-high flux pinning properties of BaMO3-doped YBa2Cu3O7-x thin films (M = Zr, Sn)

被引：251
作者：
Mele, Paolo [1 ,2 ]
Matsumoto, Kaname [1 ,2 ]
Horide, Tomoya [2 ,3 ]
Ichinose, Ataru [2 ,4 ]
Mukaida, Masashi [2 ,5 ]
Yoshida, Yutaka [2 ,6 ]
Horii, Shigeru [2 ,7 ]
Kita, Ryusuke [2 ,8 ]
机构：
[1] Kyushu Inst Technol, Dept Mat Sci & Engn, Tobata Ku, Kitakyushu, Fukuoka 8048550, Japan
[2] CREST JST, Kawaguchi, Saitama 3320012, Japan
[3] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan
[4] Cent Res Inst Elect Power Ind, Elect Power Engn Res Lab, Yokosuka, Kanagawa 2400196, Japan
[5] Kyushu Univ, Dept Mat Sci & Engn, Nishi Ku, Fukuoka 8128581, Japan
[6] Nagoya Univ, Dept Elect Engn & Comp Sci, Chikusa Ku, Nagoya, Aichi 4648603, Japan
[7] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan
[8] Shizuoka Univ, Grad Sch Sci & Technol, Shizuoka 4328651, Japan
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2008年 / 21卷 / 03期
关键词：
D O I：
10.1088/0953-2048/21/3/032002
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We studied the flux pinning properties of BaZrO3-doped YBa2Cu3O7-x and BaSnO3-doped YBa2Cu3O7-x films. We found that BaSnO3-doped films showed very high global pinning forces, F-p, of 28.3 GN m(-3) ( 77 K, B parallel to c) and 103 GN m-3 ( 65 K, B parallel to c), twice that of BaZrO3-doped films. Transmission electron microscopy analysis showed that, in both films, nanorods of the dopant phase were incorporated. The BaSnO3 nanorods were nearly straight but the BaZrO3 nanorods became curved with the increasing film thickness.
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页数：5
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