Approaching itinerant magnetic quantum criticality through a Hund's coupling induced electronic crossover in the YFe${}_2$Ge${}_2$ superconductor

D. Zhao, H. L. Wo, J. Li +8

Here, by conducting a systematic ${}^{89}$Y NMR study, we explore the nature of the magnetic ground state in a newly discovered iron-based superconductor YFe${}_2$Ge${}_2$. An incoherent…