Phase coexistence and transformations in field-cooled ternary piezoelectric single crystals near the morphotropic phase boundary

Journal Article · Mon Dec 08 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4903476· OSTI ID:22395487

Luo, Chengtao; Wang, Yaojin; Wang, Zhiguang; Ge, Wenwei; Li, Jiefang; Viehland, D. ^[1]; Luo, Haosu ^[2]

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1. Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061 (United States)
2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, 215 Chengbei Road, Jiading, Shanghai 201800 (China)

Structural phase transformations in (100)-oriented Pb(In{sub 1/2}Nb{sub 1/2})O{sub 3}-Pb(Mg{sub 1/3}Nb{sub 2/3})O{sub 3}-PbTiO{sub 3} single crystals have been investigated by X-ray diffraction. A cubic (C) → tetragonal (T) → monoclinic-C (M{sub C}) transformation sequence was observed in the field-cooled condition. Two phase coexistence regions of C + T and T + M{sub C} were found. In addition to an increase in the C → T phase transition temperature and a decrease of the T → M{sub C} one, a broadening of the coexistence regions was also found with increasing field. This broadening can be explained by the presence of polar nano regions within the C, T, and M{sub C} phase regions.

• OSTI ID: 22395487
• Journal Information: Applied Physics Letters, Vol. 105, Issue 23; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
LEAD COMPOUNDS
MAGNESIUM COMPOUNDS
MONOCLINIC LATTICES
MONOCRYSTALS
NIOBIUM COMPOUNDS
PHASE STABILITY
PHASE STUDIES
PHASE TRANSFORMATIONS
PIEZOELECTRICITY
TITANATES
TRANSITION TEMPERATURE
X-RAY DIFFRACTION