Domain topology and domain switching kinetics in a hybrid improper ferroelectric

  title={Domain topology and domain switching kinetics in a hybrid improper ferroelectric},
  author={Fei-Ting Huang and Fei Xue and Bin Gao and L. H. Wang and X. Luo and Wei Cai and X. Z. Lu and James M. Rondinelli and L. Q. Chen and S. -W. Cheong},
  journal={Nature Communications},
Charged polar interfaces such as charged ferroelectric walls or heterostructured interfaces of ZnO/(Zn,Mg)O and LaAlO3/SrTiO3, across which the normal component of electric polarization changes suddenly, can host large two-dimensional conduction. Charged ferroelectric walls, which are energetically unfavourable in general, were found to be mysteriously abundant in hybrid improper ferroelectric (Ca,Sr)3Ti2O7 crystals. From the exploration of antiphase boundaries in bilayer-perovskites, here we… 

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