作者: M. Ghita , M. Fornari , D. J. Singh , S. V. Halilov
DOI: 10.1103/PHYSREVB.72.054114
关键词:
摘要: Density functional calculations are used to investigate the trends in lattice instabilities of perovskites, BaTiO{sub 3}, PbTiO{sub BaZrO{sub and PbZrO{sub 3} with volume. A simple scheme for classifying perovskites terms A-site B-site activities is discussed relation competition between rhombohedral tetragonal ground states.