Structural phase transformation and phase boundary∕stability studies of field-cooled Pb(Mg1∕3Nb2∕3O3)–32%PbTiO3 crystals
2005
Structural phase transformations in (001)-oriented (1−x)Pb(Mg1∕3Nb2∕3O3)–32%PbTiO3 crystals have been investigated by x-ray diffraction. A C→T→MC sequence was observed in both the field-cooled and zero-field-cooled conditions. Most interestingly, an anomalous increase in the C→T phase boundary with increasing field has been observed, which is seemingly a common characteristic of crystals whose compositions are in the vicinity of the morphotropic phase boundary, irrespective of the width of the T and MC phase regions.
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