Raman study of an electric-field-induced phase transition in Pb(Zn1/3Nb2/3)O3-8%PbTiO3

Suenne Kim, In Sang Yang, Jung Kun Lee, Kug Sun Hong

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Electric-field-induced structural transition of a single crystal Pb(Zn1/3Nb2/3)O3-8%PbTiO3 grown in the (001) direction was studied by use of Raman scattering spectroscopy. By comparing the changes in Raman spectra induced by the electric field with the temperature-dependent changes, we could confirm that the structural transition to tetragonal phase is initiated at a threshold electric field Ec1 and completed at higher transition field Ec2. In the electric-field range from Ec1 to Ec2, it is found that rhombohedral and tetragonal phases coexist. The lower threshold field Ec1 is found to coincide with the field at which the strain rises abruptly in the strain electric-field hysteresis loop while the upper threshold field Ec2 corresponds to the electric field where a slope change is observed in the high-field saturation region beyond the hysteresis loop.

Original languageEnglish
Article number094105
Pages (from-to)941051-941055
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number9
StatePublished - 1 Sep 2001


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