Local environments and transport properties of heavily doped strontium barium niobates Sr0.5Ba0.5Nb2O6

EXAFS Radial Distribution Function for Nb, and a projection of the SBN structure along the c axis. The two different sets of symmetry - equivalent Nb-O octahedra are marked in green and dark blue. Cyan and yellow spheres mark the A1 (occupied by Sr only) and A2 sites (occupied by both Sr and Ba).142