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The effects of strain relaxation on the dielectric properties of epitaxial ferroelectric Pb(ZrTi)TiO thin films

Applied Physics Letters, ISSN: 0003-6951, Vol: 105, Issue: 2
2014
  • 12
    Citations
  • 0
    Usage
  • 18
    Captures
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    12
    • Citation Indexes
      12
  • Captures
    18

Article Description

We study the effects of strain relaxation on the dielectric properties of epitaxial 40 nm Pb(ZrTi)TiO (PZT) films. A significant increase in the defect and dislocation density due to strain relaxation is observed in PZT films with tetragonality c/a < 1.07 grown on SrTiO (001) substrates, which results in significant frequency dispersion of the dielectric constant and strong Rayleigh type behavior in those samples. This combined structural-electrical study provides a framework for investigating strain relaxation in thin films and can provide useful insights into the mechanisms of fatigue in ferroelectric materials. © 2014 AIP Publishing LLC.

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