Properties of half metallic (Ba0.8Sr0.2)2−xLa2x/3#x/3FeMoO6 double perovskites

Previous work in (Ba0.8Sr0.2)2−xLaxFeMoO6 and Ba1+xSr1−3xLa2xFeMoO6 have stated electron doping as the most important parameter in terms of Tc enhancement. Here we report complementary structural, magnetic and transport properties, say a series where there is no doping and only structural parameters are changed: (Ba0.8Sr0.2)2−xLa2x/3#x/3FeMoO6. We propose a complete phase diagram where structural and bandfilling impact on the Curie temperature is clearly evidenced.