Figure 2
From: Development of very high Jc in Ba(Fe1-xCox)2As2 thin films grown on CaF2
Elemental maps of the multilayer Co-Ba122 thin films on CaF2.
The Fe and As map are uniform across the Ba122 and reaction layers. Ba and Ca maps indicate an interdiffusion of the two element in the reaction layer. O map reveals an high concentration of oxygen in the reaction layer and in the top part of the substrate (above and below the interface) and presence of oxygen in the Ba122 layer. The interface is the top of the CaF2 substrate.
