Convert Widespread Paraelectric Perovskite to Ferroelectrics.

  title={Convert Widespread Paraelectric Perovskite to Ferroelectrics.},
  author={Hongwei Wang and Fujie Tang and Massimiliano Stengel and Hongjun Xiang and Qingzhi An and Tony Low and Xifan Wu},
  journal={Physical review letters},
  volume={128 19},
While nature provides a plethora of perovskite materials, only a few exhibit large ferroelectricity and possibly multiferroicity. The majority of perovskite materials have the nonpolar CaTiO_{3}(CTO) structure, limiting the scope of their applications. Based on the effective Hamiltonian model as well as first-principles calculations, we propose a general thin-film design method to stabilize the functional BiFeO_{3}(BFO)-type structure, which is a common metastable structure in widespread CTO… 

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