Electron spin resonance in Eu based Fe pnictides

H. -A. Krug von Nidda, S. Kraus, S. Schaile +9

The phase diagrams of EuFe${}_{2-x}$Co${}_x$As${}_2$ $(0\le x\le 0.4)$ and EuFe${}_2$As${}_{2-y}$P${}_y$ $(0\le y\le 0.43)$ are investigated by Eu${}^{2+}$ electron spin resonance (ESR)…