Electron mass enhancement and magnetic phase separation near the Mott transition in double layer ruthenates

Jin Peng, X. M. Gu, G. T. Zhou +6

We present a detailed investigation of the specific heat in Ca${}_3$(Ru${}_{1-x}{M}_x$)${}_2$O${}_7$ ($M$ = Ti, Fe, Mn) single crystals. With different dopants and doping levels, three disti…