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Domain structure and polarization reversal in ferroelectrics studied by atomic force microscopy

Research output: Contribution to journalJournal article

Published

  • Alexei Gruverman
  • Oleg Kolosov
  • Jun Hatano
  • Koichiro Takahashi
  • H. Tokumoto
Journal publication date05/1995
Journal Journal of Vacuum Science and Technology B
Journal number3
Volume13
Number of pages5
Pages1095-1099
Original languageEnglish

Abstract

The ferroelectric domain structure and its dynamics under applied electric field have been studied with nanoscale resolution by atomic force microscopy (AFM). Two mechanisms responsible for the contrast between opposite domains are proposed: large built‐in domains are delineated in friction mode due to the tip–sample electrostatic interaction, and small domains created by an external field are imaged in topography mode due to piezoelectric deformation of the crystal. The ability of effective control of ferroelectric domains by applying a voltage between the AFM tip and the bottom electrode is demonstrated. It is experimentally confirmed that the sidewise growth of domain proceeds through the nucleation process on the domain wall.