Pulsed laser deposition of ErBa2Cu3O7-δ films with BaZrO3 nano-particles by using a novel target

被引：4
|
作者：
Yasunaga, S.
Mukaida, M.
Horii, S.
Kita, R.
Kato, S.
Ichinose, A.
Yoshida, Y.
Matsumoto, K.
Teranishi, R.
Yamada, K.
Mori, N.
机构：
[1] Kyushu Univ, Grad Sch Engn, Dept Mat Phys & Chem, Fukuoka, Fukuoka 8190395, Japan
[2] Univ Tokyo, Bunkyo Ku, Tokyo 1138656, Japan
[3] Shizuoka Univ, Hamamatsu, Shizuoka 4328651, Japan
[4] Cent Res Inst Elect Power Ind, Yokosuka, Kanagawa 2400196, Japan
[5] Nagoya Univ, Chikusa Ku, Nagoya, Aichi 4648603, Japan
[6] Kyoto Univ, Sakyo Ku, Kyoto, Kyoto 6068510, Japan
[7] CREST, JST, Kawaguchi, Saitama 3320012, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2007年 / 463卷
关键词：
ErBa2Cu3O7-delta films; BaZrO3; doping; nano-particle; target;
D O I：
10.1016/j.physc.2007.04.272
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We fabricated an ErBa2Cu3O7-(delta) (ErBCO) thin film with BaZrO3 (BZO) doping (BZO + ErBCO) on a SrTiO3 (STO) substrate by a pulsed laser deposition (PLD) method using a novel target which consists of two parts. One is ErBCO for a superconducting phase, the other is rectangular shaped BZO for pinning centers. From an X-ray diffraction (XRD) pattern, the ErBCO film was c-axis oriented and in-plane aligned on the STO substrate. Microstructures of the BZO + ErBCO film were observed by a transmission electron microscope (TEM). In the TEM image, nano-particles of BZO were observed in the film, not nano-rods. This result means that the novel target enables to dope BZO nano-particles into the film without any target changing. From the TEM image and thickness of the sample, a volume percentage of BZO nano-particles is calculated to be 7.3 vol%. It is almost the same to the calculated value from the percentage of laser irradiating area. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：900 / 903
页数：4
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