| Summary: | 碩士 === 輔仁大學 === 物理學系 === 93 === This work was measured electric permittivity and observed polarizing microscope after applied different electric field on (111)-cut single crystal Pb(Mg1/3Nb2/3)1-xTixO3 , for x= 28.6, 34.4, and 35.8.
In these samples, an electric field applied along the [111] direction. As electric field applied, more polarization of sample domains was rotated into monoclinic phase, and this phase plays an important role in phase transition while temperature increases. Electric field enhanced some phase transition or induced phase appear with monoclinic phase increase. By measured dielectric permittivity frequency scanning, we also found dielectric resonance after applied electric field.
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