Faceting Oscillations in Nano-Ferroelectrics

J. F. Scott; Ashok Kumar

doi:10.1063/1.4892362

Faceting Oscillations in Nano-Ferroelectrics

Materials Science 2015-06-22 v1

Authors: J. F. Scott , Ashok Kumar

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Abstract

We observe periodic faceting of 8-nm diameter ferroelectric disks on a 10 s time-scale when thin Pb(Zr0.52Ti0.48)O3 (PZT) film is exposed to constant high-resolution transmission electron microscopy (HRTEM) beams. The oscillation is between circular disk geometry and sharply faceted hexagons. The behavior is analogous to that of spin structure and magnetic domain wall velocity oscillations in permalloy [A. Bisig et al., Nature Commun. 4, 2328 (2013)], involving overshoot and de-pinning from defects [C. P. Amann, et al., J. Rheol. 57, 149-175 (2013)].

Keywords

ferroelectric thin films thin film magnetism thin films

Cite

@article{arxiv.1407.7646,
  title  = {Faceting Oscillations in Nano-Ferroelectrics},
  author = {J. F. Scott and Ashok Kumar},
  journal= {arXiv preprint arXiv:1407.7646},
  year   = {2015}
}

Comments

14 pages, 3 figures

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