Journal ArticleDOI
The role of domain walls on the dielectric, elastic and piezoelectric properties of ferroelectric ceramics
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Abstract:
Domain splitting in the grains of ferroelectric ceramics reduces the internal elastic stresses which are caused by spontaneous deformation. Hysteresis switching reflects the increase or absence of internal stress. Small signal elastic and electric ac fields applied to the ceramic cause reversible domain wall motion thus giving contributions to the dielectric, piezoelectric and elastic constants of these materials.read more
Citations
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Journal ArticleDOI
Nonlinearity in piezoelectric ceramics
TL;DR: In this paper, the authors present an overview of experimental evidence and present understanding of nonlinear dielectric, elastic and piezoelectric relationships in PEG ceramics.
Journal ArticleDOI
The extrinsic nature of nonlinear behavior observed in lead zirconate titanate ferroelectric ceramic
TL;DR: In this paper, a phenomenological theory of Arlt, Dederichs, and Herbiet has been extended to include the nonlinear contributions of lead zirconate titanate Pb(ZrxTi1−x)O3 ceramics.
Journal ArticleDOI
Ferroelectric materials for 64 Mb and 256 Mb DRAMs
L.H. Parker,A.F. Tasch +1 more
TL;DR: In this paper, the feasibility of using ferroelectric materials as the capacitor dielectric in the one-transistor memory cells for 64-Mb and 256Mb DRAMs was studied.
Journal ArticleDOI
Electrical characteristics of ferroelectric PZT thin films for DRAM applications
TL;DR: In this paper, the authors used a simple model for electronic hopping through the PZT lead zirconate titanate (PZT) film to obtain a leakage current as low as 9*10/sup -8/ A/cm/sup 2/ at 2.5 V for a 4000-AA film with the addition of La and Fe to compensate for Pb and O vacancies.
Journal ArticleDOI
Losses in ferroelectric materials
TL;DR: It is shown that a thorough understanding on the kinetic processes is critical in analyzing energy loss behavior and other time-dependent properties in ferroelectric materials, and a general theoretical model is proposed to describe the inherent relationships among elastic, dielectric, piezoelectric and mechanical losses.
References
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Book
Principles and Applications of Ferroelectrics and Related Materials
TL;DR: In this paper, the theory of ferroelectricity in terms of soft modes and lattice dynamics is developed and modern techniques of measurement, including X-ray, optic, and neutron scattering, infra-red absorption, and magnetic resonance.
Journal ArticleDOI
Dielectric properties of fine‐grained barium titanate ceramics
G. Arlt,D. Hennings +1 more
TL;DR: In this article, the authors studied the dielectric properties, lattice and microstructure of ceramic BaTiO3 showing grain sizes of 0.3-100 μm and showed that at grain sizes <10 μm the width of ferroelectric 90° domains decreases proportionally to the square root of the grain diameter.
Journal ArticleDOI
Domain configuration and equilibrium size of domains in BaTiO3 ceramics
TL;DR: In this article, the authors derived the spatial configuration of the domains in BaTiO3 ceramics from etch patterns, which can be described by two types of domain configurations: 90'° and 180'° domain walls.
Journal ArticleDOI
Scanning Electron Microscopy and Transmission Electron Microscopy Study of Ferroelectric Domains in Doped BaTiO3
Journal ArticleDOI
Ageing of the Dielectric Properties of Barium Titanate Ceramics
TL;DR: In this article, a theory is proposed which postulates that a large contribution is made to the permittivity by the motion of domain walls, and that the domain walls are gradually moved to more stable and less polarizable states by thermal agitation.