Strain-driven phase transitions and associated dielectric/piezoelectric anomalies in BiFeO3 thin films
Strain-driven phase transitions and related intrinsic polarization, dielectric, and piezoelectric properties for single-domain films were studied for BiFeO3 using phenomenological Landau–Devonshire theory. A stable and mixed structure between tetragonal and rhombohedral-like (monoclinic) phases is p...
| প্রধান লেখক: | , , , , , , , |
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| অন্যান্য লেখক: | |
| বিন্যাস: | Journal Article |
| ভাষা: | English |
| প্রকাশিত: |
2011
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| বিষয়গুলি: | |
| অনলাইন ব্যবহার করুন: | https://hdl.handle.net/10356/99908 http://hdl.handle.net/10220/6845 |
| সংক্ষিপ্ত: | Strain-driven phase transitions and related intrinsic polarization, dielectric, and piezoelectric properties for single-domain films were studied for BiFeO3 using phenomenological Landau–Devonshire theory. A stable and mixed structure between tetragonal and rhombohedral-like (monoclinic) phases is predicted at a compressive misfit strain of um=−0.0382 without an energy barrier. For a tensile misfit strain of um=0.0272, another phase transition between the monoclinic and orthorhombic phases was predicted with sharply high dielectric and piezoelectric responses. |
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