| Electric Field-Induced Phase Transition Behavior in Tetragonal Pb(Zn1/3Nb2/3)O3-PbTiO3 Single Crystals |
| Dae-Yong Jeong, Jin-Sang Kim, Hyun-Jai Kim, Seok-Jin Yoon |
| Thin Film Materials Research Center, Korea Institute of Science and Technology |
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| ABSTRACT |
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Electric field-induced phase transition from the tetragonal to rhombohedral phase was investigated for the <111> direction in tetragonal PZN-PT single crystals, which have spontaneous polarization along the <001> direction. From the strain and dielectric data, it was confirmed that the samples followed a tetragonal-orthorhombic-rhombohedral phase transition sequence with application of an electric field. This transition is different from the rhombohedral-tetragonal phase transition of <001> rhombohedral composition single crystals, in which a phase transition occurred without showing the intermediate orthorhombic phase. |
| Key words:
Phase transition, Tetragonal, Ferroelectric, Single crystal |
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