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 SrRu$_{1-x}$Mn$_{x}$O$_{3}$ (0$\le $ x$<$0.60), i.e., Mn doped SrRuO$_{3}$. The Mn doping drives the system from the itinerant ferromagnetic state (T$_{C}$=165 K for x=0) through a quantum critical point at x$_{c}$=0.39 to an insulating antiferromagnetic state. The onset of antiferromagnetism is abrupt with a Néel temperature increasing from 205 K for x=0.44 to 250 K for x=0.59. Accompanying this quantum phase transition is a drastic change in resistivity by as much as 8 orders of magnitude as a function of x at low temperatures. The critical composition x$_{c}$=0.39 sharply separates the two distinct ground states, namely the ferromagnetic metal from the antiferromagnetic insulator.