The known multiferroics(MFs)-ternary oxides with perovskite-type structure PbB′_(0.5)B″_(0.5)O_(3),that undergo successive phase transitions(PTs),ferroelectric(FE)or antiferroelectric(AFE)--at the Curie temperature,...The known multiferroics(MFs)-ternary oxides with perovskite-type structure PbB′_(0.5)B″_(0.5)O_(3),that undergo successive phase transitions(PTs),ferroelectric(FE)or antiferroelectric(AFE)--at the Curie temperature,T_(C),and ferromagnetic(FM),antiferromagnetic(AFM)or ferrimagnetic at the Neel temperature,T_(N) and classical FEs and AFEs are considered.The dependences of the T_(C),T_(N) on the interatomic bond A-O strains in their perovskite structures have been constructed.On constructed dependencies,some ternary MFs are discovered,which have comparatively high temperatures of first FE or AFE and second magnetic PTs but their difference T_(C)-T_(N) values are high comparatively with the binary MFs.展开更多
基金financially supported by the Ministry of Science and Higher Education of the Russian Federation(State assignment in the field of scientific activity,Southern Federal University,2023,Project No.FENW-2023-0015).
文摘The known multiferroics(MFs)-ternary oxides with perovskite-type structure PbB′_(0.5)B″_(0.5)O_(3),that undergo successive phase transitions(PTs),ferroelectric(FE)or antiferroelectric(AFE)--at the Curie temperature,T_(C),and ferromagnetic(FM),antiferromagnetic(AFM)or ferrimagnetic at the Neel temperature,T_(N) and classical FEs and AFEs are considered.The dependences of the T_(C),T_(N) on the interatomic bond A-O strains in their perovskite structures have been constructed.On constructed dependencies,some ternary MFs are discovered,which have comparatively high temperatures of first FE or AFE and second magnetic PTs but their difference T_(C)-T_(N) values are high comparatively with the binary MFs.
