Imaging Ferroelectric Domains via Charge Gradient Microscopy Enhanced by Principal Component Analysis

  title={Imaging Ferroelectric Domains via Charge Gradient Microscopy Enhanced by Principal Component Analysis},
  author={Ehsan Nasr Esfahani and Xiaoyan Liu and Jiangyu Li},
  journal={arXiv: Materials Science},
Local domain structures of ferroelectrics have been studied extensively using various modes of scanning probes at the nanoscale, including piezoresponse force microscopy (PFM) and Kelvin probe force microscopy (KPFM), though none of these techniques measure the polarization directly, and the fast formation kinetics of domains and screening charges cannot be captured by these quasi-static measurements. In this study, we used charge gradient microscopy (CGM) to image ferroelectric domains of… Expand
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