Superconducting properties of iron-platinum-arsenides Ca-10(PtnAs8)(Fe2-xPtxAs2)(5) (n=3, 4)

作者：Tamegai T^*; Ding Q P; Taen T; Ohtake F; Inoue H; Tsuchiya Y; Mohan S; Sun Y; Nakajima Y; Pyon S; Kitamura H

来源：Physica C-Superconductivity and Its Applications, 2013, 494: 65-68.

DOI：10.1016/j.physc.2013.04.037

• Iron-based superconductors
• Iron-platinum-arsenide
• Magneto-optical imaging
• Critical current density

High-quality single crystals of iron-platinum arsenides Ca-10(PtnAs8)(Fe2-xPtxAs2)(5) (n = 3, 4) have been grown and their superconducting properties are characterized. The n = 4 and n = 3 compounds have T-c'-s similar to 30 K and 13 K, respectively. Reflecting a modest anisotropy of the system, resistive transition for H//c-axis shows modest broadening in both systems. Magneto-optical imaging shows that superconductivity in both compounds is rather homogeneous, with the critical current density, J(c), similar to 1 x 10(5) A/cm(2) at 5 K under self-field. Proton irradiation u

• 出版日期2013-11