On the link between critical temperature and critical current as a function of strain in coated conductors
On the link between critical temperature and critical current as a function of strain in coated conductors
复制标题
涂层导体中临界温度和临界电流与应变函数之间的关系
DOI：
10.1088/0953-2048/21/7/075002
复制
发表时间：
2008
影响因子：
3.6
通讯作者：
C. Villard
中科院分区：
文献类型：
--
作者：
A. Antonevici;C. Villard
结合临界温度 (Tc) 测量研究了 RE-123 涂层导体（其中 RE 代表稀土）中临界电流 Ic 作为应变 ϵ 函数的可逆变化。在 Y-123 基涂层导体中，临界温度的正应变依赖性决定了临界电流变化 Ic(ϵ)。这种 Tc(ϵ) 变化的起源从细胞参数变化和应变引起的局部超导增强方面进行了讨论。 Dy-123 涂层导体的情况完全不同：Ic 和 Tc 都随着应变而减小，而 Ic 变化的幅度现在大约是 Tc 变化的三倍。这些结果表明这些材料中存在应力敏感缺陷。
The reversible change of critical current Ic as a function of strain ϵ in RE-123 coated conductors (where RE represent rare earth) is studied in association with critical temperature (Tc) measurements. In Y-123 based coated conductors, the positive strain dependence of the critical temperature determines the critical current variation Ic(ϵ). The origin of this Tc(ϵ) variation is discussed in terms of cell parameter change and local superconductivity enhancement induced by strain. The situation is quite different in Dy-123 coated conductors: both Ic and Tc decrease with strain while the amplitude of the Ic change is now about three times larger than the Tc one. Such results point to the existence of stress sensitive defects in these materials.
影响因子：
3.6
作者：
Osamura, Kozo;Sugano, Michinaka;Otto, Alexander
通讯作者：
Otto, Alexander