Multiple strains and polar states in PbZrTiO/PbTiO superlattices revealed by aberration-corrected HAADF-STEM imaging.

Y L Tang,Y L Zhu,Y J Wang,X L Ma,yl tang,yl zhu,yj wang,xl ma

Ultramicroscopy（2018）

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摘要

•Four strain states were found in ferroelectric superlattice by using HAADF-STEM.•Multiple polar states were identified in ferroelectric superlattice•Polarization enhancement up to 200% was identified in PbZr0.52Ti0.48O3 layer.

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关键词

Aberration-corrected high angle annular dark field (HAADF),Ferroelectric film,PbZr0.52Ti0.48O3/PbTiO3 superlattice,Multiple strain states,Polarization enhancement

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