Microscopic coexistence of superconductivity and antiferromagnetism in underdoped Ba(Fe1-xRux)2As2

Long Ma, G. F. Ji, Jia Dai +5

We use ${}^{75}$As nuclear magnetic resonance (NMR) to investigate the local electronic properties of Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$ ($x=$ 0.23). We find two phase transitions, to…