Fermi liquid breakdown and evidence for superconductivity in YFe${}_2$Ge${}_2$

Y. Zou, Z. Feng, P. W. Logg +3

In the d-electron system YFe${}_2$Ge${}_2$, an unusually high and temperature dependent Sommerfeld ratio of the specific heat capacity $C/T\sim 100mJ/(\mathrm{mol}{\mathrm{K}}^2)$ and an anomal…