Synthesis and physical properties of $\mathbf{La}{\mathbf{O}}_{1-\mathbf{x}}{\mathbf{F}}_{\mathbf{x}}\mathbf{FeAs}$

Agnieszka Kondrat, Jorge Enrique Hamann-Borrero, Norman Leps +9

We have prepared the newly discovered Fe-based superconducting material $\mathrm{La}{\mathrm{O}}_{1-\mathrm{x}}{\mathrm{F}}_{\mathrm{x}}\mathrm{FeAs}$ ($0\le x\le 0.2$) in polycrystalline form and have investigated the samples by mean…