J. solid state chem. J. solid state chem. Local environments and transport properties of heavily doped strontium barium niobates Sr0.5Ba0.5Nb2O6 Ottini Riccardo Tealdi Cristina Tomasi Corrado Tredici Ilenia G. Soffientini Alessandro Burriel Ramón Universidad de Zaragoza Palacios Elías Universidad de Zaragoza Castro Miguel Universidad de Zaragoza Anselmi-Tamburini Umberto Ghigna Paolo Spinolo Giorgio 2018 research-article