Simulation of hysteresis loops for polycrystalline ferroelectrics by an extensive Landau-type model
Landau-type phenomenological theory is extended to the polycrystalline ferroelectrics by defining a volume fraction of polarization to simulate polarization hysteresis loops. Using this simple model, polarization hysteresis loops of a model Pb(Zr0.52Ti0.48)O3 ceramic at different fields or temperatu...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-74249106882&partnerID=40&md5=e51f5a2755cbc11ccfb939ffda2b91db http://cmuir.cmu.ac.th/handle/6653943832/5777 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | Landau-type phenomenological theory is extended to the polycrystalline ferroelectrics by defining a volume fraction of polarization to simulate polarization hysteresis loops. Using this simple model, polarization hysteresis loops of a model Pb(Zr0.52Ti0.48)O3 ceramic at different fields or temperatures are simulated, it is found that our results are in very good agreement with the experimental data for the saturated as well as the unsaturated loops. Moreover, this model can accurately predict the coercive fields and remnant polarizations under arbitrary applied fields. © 2009 Elsevier B.V. All rights reserved. |
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