From itinerant ferromagnetism to insulating antiferromagnetism: A magnetic and transport study of single crystal SrRu$_{1-x}$Mn$_{x}$O$_{3}$ (0$\le $ x$<$0.60)

We report results of a magnetic and transport study of ${\mathrm{SrRu}}_{1\ensuremath{-}x}{\mathrm{Mn}}_{x}{\mathrm{O}}_{3}\phantom{\rule{0.3em}{0ex}}(0\ensuremath{\leqslant}xl0.60)$, i.e., Mn doped ${\mathrm{SrRuO}}_{3}$. The Mn doping drives the system from the itinerant ferromagnetic state (${T}_{\mathrm{C}}=165\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ for $x=0$) through a quantum critical point at ${x}_{\mathrm{c}}=0.39$ to an insulating antiferromagnetic state. The onset of antiferromagnetism is abrupt with a N\'eel temperature increasing from 205 K for $x=0.44$ to 250 K for $x=0.59$. Accompanying this quantum phase transition is a drastic change in resistivity by as much as eight orders of magnitude as a function of $x$ at low temperatures. The critical composition ${x}_{\mathrm{c}}=0.39$ sharply separates the two distinct ground states, namely the ferromagnetic metal from the antiferromagnetic insulator.