Thermal fluctuation conductivity and dimensionality in iron-based superconductors

Wang Rui^{1, 2, †,}, Li Ding-Ping^{1, 2, ‡,}

The contour lines of εd² versus both temperature and magnetic field. (a) For LaOFeAs, εd² ∼ 1. (b) For BaFe_2−xNi_xAs₂, εd² < 1.