Multi-Band Calculations on the Upper Critical Fields of Iron Pnictide Superconductor Ba(Fe1-xNix)2As2 (x=0.072)

作者：Huang, Hai^*; Lv, Peng-Li; Li, Wei-Feng; Liu, Peng

来源：Acta Physica Polonica, A, 2015, 127(3): 799-802.

DOI：10.12693/APhysPolA.127.799

• PURITY DEPENDENCE
• TEMPERATURE
• GAPS

Based on two-band Ginzburg-Landau theory, we study the upper critical fields for the overdoped composition of the iron-based superconductor Ba(Fe1-xNix)(2)As-2 with x = 0.072. All the temperature and angular results of this compound are consistent with the experimental data. Thus our analysis strongly suggests that Ba(Fe1-xNix)(2)As-2 in the overdoped regime is a two-gap superconductor.

• 出版日期2015-3
• 单位华北电力大学（保定）; 华北电力大学; 北京大学