Growth temperature dependence of flux pinning properties in ErBa2Cu3Oy thin films with nano-rods

被引：4
|
作者：
Haruta, M. [1 ]
Sueyoshi, T. [2 ]
Fujiyoshi, T. [2 ]
Mukaida, M. [3 ]
Kai, H. [3 ]
Matsumoto, K. [4 ]
Mele, P. [4 ]
Maeda, T. [1 ]
Horii, S. [1 ]
机构：
[1] Kochi Univ Technol, Kami, Kochi 7828502, Japan
[2] Kumamoto Univ, Kumamoto 8608555, Japan
[3] Kyushu Univ, Nishi Ku, Fukuoka 8190385, Japan
[4] Kyushu Inst Technol, Tobata Ku, Kitakyushu, Fukuoka 8048550, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2011年 / 471卷 / 21-22期
关键词：
REBa2Cu3Oy thin film; Pulsed laser deposition; Flux pinning property; CRITICAL-CURRENT DENSITY; COLUMNAR DEFECTS; BOSE-GLASS; TRANSITION;
D O I：
10.1016/j.physc.2011.05.095
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Irreversibility lines and distributions of local critical current density (J(cl)) based on the percolation transition model were affected by the growth temperature (T-s) in 3.5 wt.%-BaNb2O6-doped ErBa2Cu3Oy thin films. The vortex-Bose-glass-like state appeared by the introduction of nano-rods, and this vortex state was affected by T-s The shape and width of the J(cl) distribution strongly depended on T-s. These results are probably caused by variations of the density and the growth direction for nano-rods reflecting T-s. The growth temperature is an important factor to achieve higher critical current properties under magnetic fields for coated conductors of rare-earth-based cuprates with nano-rods. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：944 / 946
页数：3
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