A research for controlling nanorod diameter in BaNb2O6 doped REBa2Cu3O7-δ films

被引：3
|
作者：
Yuki, K. [1 ]
Kai, H. [1 ,7 ]
Mukaida, M. [1 ,7 ]
Horii, S. [2 ,7 ]
Kita, R. [3 ,7 ]
Ichinose, A. [4 ,7 ]
Yoshida, Y. [5 ,7 ]
Matsumoto, K. [6 ,7 ]
Teranishi, R. [1 ,7 ]
Yamada, K. [1 ,7 ]
Mori, N. [1 ]
机构：
[1] Kyushu Univ, Fac Engn, Dept Mat Sci & Engn, Nishi Ku, Fukuoka 8190395, Japan
[2] Univ Tokyo, Bunkyo Ku, Tokyo 1138656, Japan
[3] Shizuoka Univ, Shizuoka 4328651, Japan
[4] Cent Res Inst Elect Power Ind, Kanagawa 2400196, Japan
[5] Nagoya Univ, Chikusa Ku, Aichi 4648603, Japan
[6] Kyushu Inst Technol, Tobata Ku, Fukuoka 8048550, Japan
[7] CREST JST, Kawaguchi, Saitama 3320012, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2008年 / 468卷 / 15-20期
关键词：
ErBa2Cu3O7-delta films; BaNb2O6; doping; diameter; density;
D O I：
10.1016/j.physc.2008.05.102
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Critical current density (J(C)) of REBa2Cu3O7-delta (REBCO) films deteriorates in a magnetic field, One of the methods to solve the J(C) deterioration is to introduce artificial pinning centers (APCs) such as nanorods into the REBCO films. When many nanorods with a small diameter grew up than less rods with large diameter in REBCO films, the nanorod are considered to act as APCs. Therefore, we focused on controlling the rod diameter in order to realize the higher number density of nanorods in REBCO films. BaNb2O6 (BNO) was introduced in ErBCO films. In order to decrease the diameter of nanorods, we think it is necessary to control migration length of Nb atoms at the film surface of the ErBCO. As a result, it was observed in TEM image that diameter of nanorods was changed by varying Substrate temperature and decreased with decreasing the substrate temperature. (c) 2008 Published by Elsevier B.V.
引用
收藏
页码：1861 / 1863
页数：3
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