Itinerant ferromagnetism in the As 4$p$ conduction band of Ba${}_{0.6}$K${}_{0.4}$Mn${}_2$As${}_2$ identified by x-ray magnetic circular dichroism

B. G. Ueland, Abhishek Pandey, Y. Lee +9

X-ray magnetic circular dichroism (XMCD) measurements on single-crystal and powder samples of Ba${}_{0.6}$K${}_{0.4}$Mn${}_2$As${}_2$ show that the ferromagnetism below $T_{\textrm{C}}…