Flux pinning properties and superconductivity of Gd-123 superconductor with addition of nanosized SnO2/ZrO2 particles
Flux pinning properties and superconductivity of Gd-123 superconductor with addition of nanosized SnO2/ZrO2 particles
复制标题
添加纳米 SnO2/ZrO2 颗粒的 Gd-123 超导体的通量钉扎特性和超导性
DOI：
10.1016/j.physc.2006.04.082
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发表时间：
2006
影响因子：
1.7
通讯作者：
I. Hirabayashi
中科院分区：
文献类型：
--
作者：
Caixuan Xu;A. Hu;N. Sakai;M. Izumi;I. Hirabayashi
By using top seeding melt-textured growth process, single domain bulk superconductor GdBa2Cu3O7-δ (Gd-123) was prepared in air with variable additions of nanosized SnO2 and ZrO2 powders. The inhomogeneous distribution of Gd2BaCuO5 particles was observed by scanning electron microscope study for each bulk with nanoparticles addition. A band structure composed by second phase free band, narrow second phase rich band and second phase diluted band was observed along both ab plane and c growth sectors in the vicinity of seed site. At 77 K high critical current (J c) was increased up to 99,300 A cm-2 under self-field in H-parallel c-axis configuration in Gd-123 bulk with 0.004 ZrO2 addition, molar ratio to Gd-123. J c has a remarkable spacial distribution inside the samples while keeping T c almost stable for all addition quantities
影响因子：
1.8
作者：
Matsuzaki, H;Kimura, Y;Kitano, M
通讯作者：
Kitano, M