The phenomenon of conversion polymorphism in Bi-containing metastable perovskites

Chem Commun (Camb). 2019 Apr 16;55(32):4683-4686. doi: 10.1039/c9cc00472f.


A post-synthesis thermal treatment of metastable phases in the high-pressure stabilised perovskite BiFe1-yScyO3 system results in the irreversible formation of polymorphs which represent novel polar and antipolar structures with interesting magnetic properties. Such annealing-stimulated polymorphism is believed to be a general phenomenon which can be found in other systems.

MeSH terms

  • Bismuth / chemistry*
  • Iron Compounds / chemistry*
  • Magnetic Phenomena
  • Oxides / chemistry*
  • Phase Transition
  • Pressure
  • Scandium / chemistry*


  • Iron Compounds
  • Oxides
  • Bismuth
  • Scandium