Transport properties and superconductivity in K${}_{1-x}$Ln${}_x$Fe${}_2$As${}_2$ (Ln=Sm, Nd and La) system

R. H. Liu, G. Wu, H. Chen +8

We prepared the samples K${}_{1-x}$Ln${}_x$Fe${}_2$As${}_2$ (Ln=Sm, Nd and La) with ThCr${}_2$Si${}_2$-type structure. These samples were characterized by X-ray diffraction, resistivity, sus…