Phase diagram and isotope effect in (PrEu)_0.7Ca_0.3CoO_3 cobaltites exhibiting spin-state transitions

A. V. Kalinov, O. Yu. Gorbenko, A. N. Taldenkov +11

We present the study of magnetization, thermal expansion, specific heat, resistivity, and a.c. susceptibility of (Pr${}_{1-y}$Eu${}_y$)${}_{0.7}$Ca${}_{0.3}$CoO${}_3$ cobaltites. The measure…