Chemical stability and defect formation in CaHfO3 S. M. Alay-e-Abbas, S. Nazir, Kin Mun Wong, A. Shaukat and U. Schwingenschlögl EPL, 106 2 (2014) 27003 Published online: 23 April 2014 DOI: 10.1209/0295-5075/106/27003