Abstract
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.
Original language | English |
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Article number | 152901 |
Pages (from-to) | 1049-1053 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 97 |
Issue number | 15 |
DOIs | |
State | Published - 11 Oct 2010 |