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Phase-field simulations of thickness-dependent domain stability in PbTiO3 thin films

Journal Article · · Acta Materialia, 60(8):3296-3301
Phase-field approach is used to predict the thickness effect on the domain stability in ferroelectric thin films. The strain relaxation mechanism and critical thickness for dislocation formation from both Matthews-Blakeslee (MB) and People-Bean (PB) models are employed. Thickness - strain domain stability diagrams are obtained for PbTiO3 thin films under different strain relaxation models. The relative domain fractions as a function of film thickness are also calculated and compared with experiment measurements in PbTiO3 thin films grown on SrTiO3 and KTaO3 substrates.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1092020
Report Number(s):
PNNL-SA-90776
Journal Information:
Acta Materialia, 60(8):3296-3301, Journal Name: Acta Materialia, 60(8):3296-3301
Country of Publication:
United States
Language:
English

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