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dc.contributor.authorTu, Chi-Shun
dc.contributor.authorTsai, Chih-Long
dc.contributor.authorChen, J.-S.
dc.contributor.authorSchmidt, V. Hugo
dc.identifier.citationC.-S. Tu, C.-L. Tsai, J.-S. Chen, and V.H. Schmidt, “Orientation dependence and electric-field effect in the relaxor-based ferroelectric crystal (PbMg1/3Nb2/3O3)0.68(PbTiO3)0.32,” Phys. Rev. B 65, 104113 (2002).en_US
dc.description.abstractDielectric permittivities, polarization–electric-field hysteresis loops, and domain structures have been measured as a function of temperature in relaxor-based ferroelectric single crystals (PbMg1/3Nb2/3O3)0.68(PbTiO3)0.32 (PMN-32%PT) for ⟨110⟩cub and ⟨211⟩cub orientations. Contrary to the pure PbMg1/3Nb2/3O3 (PMN), PMN-32%PT exhibits apparent crystallographic orientation dependences of dielectric permittivities, polarizations, domain structures and phase transitions. With a prior field-cooled treatment, a field-induced state, perhaps of orthorhombic symmetry, is evidenced and coexists with the rhombohedral symmetry in the low-temperature region. This field-induced phase is manifested by an extra dielectric peak observed near 373 K for the ⟨211⟩cub orientation. A relaxation mechanism which is responsible for the so-called diffuse phase transition crosses a wide temperature region of ∼340–400 K and results from fluctuations between rhombohedral and tetragonal states. In order of increasing temperature (without a prior field-cooled treatment), PMN-32%PT undergoes successive phase transformations: rhombohedral phase→coexistence of rhombohedral and tetragonal phases→tetragonal phase→coexistence of tetragonal and cubic phases→cubic phase.en_US
dc.titleOrientation dependence and electric-field effect in the relaxor-based ferroelectric crystal (PbMg1/3Nb2/3O3)0.68(PbTiO3)0.32en_US
mus.citation.journaltitlePhysical Review Ben_US
mus.identifier.categoryChemical & Material Sciencesen_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.universityMontana State University - Bozemanen_US

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