Abstract
By taking both stress and surface effects into account, the effect of thickness on ferroelectric films was investigated by using the time-dependent Ginzburg-Landau equation. Polarization hysteresis and butterfly hysteresis of various film thicknesses under different stresses were numerically simulated. The results show that under different stresses, the coercive field decreases with film thickness, while the remnant polarization and field-induced strain increase with film thickness. These trends are consistent with experimental results and verify that the effect of film thickness on remnant polarization strength and the coercive field should not be neglected.
| Original language | English |
|---|---|
| Pages (from-to) | 1070-1073+1081 |
| Journal | Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University |
| Volume | 30 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2009 |
Keywords
- Ferroelectric film
- Film thickness
- Hysteresis
- Stress
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