physica status solidi (a) · 2005 · 11 citations · 25 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsCeramicsCrystal StructureAcoustic MaterialsDielectric CeramicsFerroelectric CeramicsPiezoelectric CeramicsPiezoelectric MaterialsAtomic Force Microscopy AnalysisCantilever Beam DeflectionCantilever MechanicsElasticityLead-free Piezoelectric CeramicsLead-free PiezoelectricsPiezoelectric CharacterizationPiezoelectric Properties
Abstract The local elastic response of individual grains in lead‐free Nb‐doped Bi 4 Ti 3 O 12 piezoelectric ceramics have been examined by atomic force microscopy in the acoustic mode. Subsurface features with different elasticity down to 60 nm are imaged from the cantilever deflection vibration at a modulation frequency much lower than the cantilever resonance. Local elastic regions parallel and perpendicular to the long axis of the plate‐like grains are found in the Bi 4 Ti 3 O 12 piezoelectric ceramics, which are most likely a result of the crystal structure arrangement undergone in the grain growth of the Nb‐doped Bi 4 Ti 3 O 12 piezoelectric ceramics during sintering. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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Dynamics of ferroelastic domains in ferroelectric thin films
V. Nagarajan, A. Roytburd, Andrei Stanishevsky et al. · Nature Materials · 2002 · 577 citations