Yang, Feng ; Hu, Guangda ; Xu, Bai-Xiang ; Wu, Weibing ; Yang, Changhong ; Wu, Haitao (2012)
Statistical mechanical origin of hysteresis in ferroelectrics.
In: Journal of Applied Physics, 112 (3)
doi: 10.1063/1.4745054
Article, Bibliographie
Abstract
Hysteresis in ferroelectric materials is a strong non-linear phenomenon, the origin of which has drawn considerable attention. Based on the hopping probability function of the lattice-center ion crossing the ferroelectric double-well potential, a statistical mechanical theory is proposed to model ferroelectric hysteresis behavior. The hopping probability function is obtained from the statistical distribution function of ions in energy space, which is derived from the mathematical permutation and combination of the occupy-states of lattice-center ion. The calculated hysteresis agrees well with experimental measurements. In particular, the model provides interesting explanations to the polarization current and the coercive field, which differ from traditional microscopic models and thermodynamic theories.
| Item Type: | Article |
|---|---|
| Erschienen: | 2012 |
| Creators: | Yang, Feng ; Hu, Guangda ; Xu, Bai-Xiang ; Wu, Weibing ; Yang, Changhong ; Wu, Haitao |
| Type of entry: | Bibliographie |
| Title: | Statistical mechanical origin of hysteresis in ferroelectrics |
| Language: | English |
| Date: | 2012 |
| Publisher: | American Institute of Physics |
| Journal or Publication Title: | Journal of Applied Physics |
| Volume of the journal: | 112 |
| Issue Number: | 3 |
| DOI: | 10.1063/1.4745054 |
| Abstract: | Hysteresis in ferroelectric materials is a strong non-linear phenomenon, the origin of which has drawn considerable attention. Based on the hopping probability function of the lattice-center ion crossing the ferroelectric double-well potential, a statistical mechanical theory is proposed to model ferroelectric hysteresis behavior. The hopping probability function is obtained from the statistical distribution function of ions in energy space, which is derived from the mathematical permutation and combination of the occupy-states of lattice-center ion. The calculated hysteresis agrees well with experimental measurements. In particular, the model provides interesting explanations to the polarization current and the coercive field, which differ from traditional microscopic models and thermodynamic theories. |
| Uncontrolled Keywords: | dielectric hysteresis, dielectric polarisation, ferroelectric coercive field, ferroelectric materials, probability, statistical mechanics |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Mechanics of functional Materials Exzellenzinitiative Exzellenzinitiative > Graduate Schools Exzellenzinitiative > Graduate Schools > Graduate School of Computational Engineering (CE) Zentrale Einrichtungen |
| Date Deposited: | 18 Apr 2013 07:56 |
| Last Modified: | 26 Jan 2024 09:21 |
| PPN: | |
| Funders: | The work was supported by the National Natural Science Foundation of China (No. 11104116) and the Outstanding Young Scientists Foundation Grant of Shandong Province (No. BS2011CL003). |
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