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Multi-Band Calculations on the Upper Critical Fields of Iron Pnictide Superconductor Ba(Fe_{1-x}Ni_x)_2As_2 (x=0.072)

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Huang H., Lv P.-L., Li W.-F., Liu P.

Acta Physica Polonica A

2015

vol. 127

issue 3

799-802

Based on two-band Ginzburg-Landau theory, we study the upper critical fields for the overdoped composition of the iron-based superconductor Ba(Fe_{1-x}Ni_x)_2As_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(Fe_{1-x}Ni_x)_2As_2 in the overdoped regime is a two-gap superconductor.

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1 Acta Physica Polonica A

1 2015

1 Huang H.

1 Li W.-F.

1 Liu P.

1 Lv P.-L.

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Multi-Band Calculations on the Upper Critical Fields of Iron Pnictide Superconductor Ba(Fe_{1-x}Ni_x)_2As_2 (x=0.072)