Journal ArticleDOI
Crystallographic orientation of epitaxial BaTiO3 films: The role of thermal‐expansion mismatch with the substrate
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TLDR
In this article, the BaTiO3 films were grown on MgO and GaAs substrates by pulsed laser deposition to explore the effect of substrate lattice parameter.Abstract:
Expitaxial ferroelectric BaTiO3 thin films have been grown on (001) MgO and MgO‐buffered (001) GaAs substrates by pulsed laser deposition to explore the effect of substrate lattice parameter. X‐ray‐diffraction studies showed that the BaTiO3 films on both MgO single‐crystal substrates and MgO‐buffered (001) GaAs substrates have a cube‐on‐cube epitaxy; however, for the BaTiO3 films grown on MgO the spacing of the planes parallel to the substrate was close to the c‐axis dimension of the unconstrained tetragonal phase, whereas the BaTiO3 films on MgO/GaAs exhibited a spacing closer to the a‐axis dimension of the unconstrained tetragonal phase. The cube‐on‐cube epitaxy was maintained through the heterostructures even when thin epitaxial intermediate buffer layers of SrTiO3 and La0.5Sr0.5CoO3 were used. The intermediate layers had no effect on the position of the BaTiO3 peak in θ‐2θ scans. Together, these observations indicate that, for the materials combinations studied, it is the thermal‐expansion mismatch be...read more
Citations
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Journal ArticleDOI
Ferroelectric thin films: Review of materials, properties, and applications
Nava Setter,Dragan Damjanovic,L. Eng,Glen R. Fox,Spartak Gevorgian,Seungbum Hong,Angus I. Kingon,Hermann Kohlstedt,N. Y. Park,G. B. Stephenson,I. Stolitchnov,A. K. Taganstev,D. V. Taylor,Tomoaki Yamada,Stephen K. Streiffer +14 more
TL;DR: An overview of the state of the art in ferroelectric thin films is presented in this paper, where the authors review applications: micro-systems' applications, applications in high frequency electronics, and memories based on Ferroelectric materials.
Journal ArticleDOI
A Thin Film Approach to Engineering Functionality into Oxides
TL;DR: In this paper, the use of reactive molecular-beam epitaxy and pulsed-laser deposition to synthesize functional oxides, including ferroelectrics, ferromagnets, and materials that are both at the same time, is described.
Journal ArticleDOI
Mosaic structure in epitaxial thin films having large lattice mismatch
TL;DR: In this paper, the in-plane component of the mosaic misorientation can be determined from the rocking curves of substrate normal and off-axis reflections, and the differences in the mosaic structure of these films are attributed to the crystallographic nature of their lattice dislocations.
Journal ArticleDOI
Impact of thermal strain on the dielectric constant of sputtered barium strontium titanate thin films
T. R. Taylor,P. J. Hansen,B. Acikel,Nadia K. Pervez,Robert A. York,Stephen K. Streiffer,James S. Speck +6 more
TL;DR: Barium strontium titanate thin films were deposited by sputtering on Pt/SiO2 structures using five different host substrates: magnesium oxide, stoneme titanate, sapphire, silicon, and vycor glass.
Journal ArticleDOI
Thermodynamics of polydomain heterostructures. III. Domain stability map
TL;DR: In this paper, a map showing regions of stability of possible domain structures and relative fractions of domains in a polytwin structure is developed for epitaxial heterostructures with active layers which undergo a cubic-tetragonal or a tetragonal-orthorhombic transformation.
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
Domain configurations due to multiple misfit relaxation mechanisms in epitaxial ferroelectric thin films. i: theory
James S. Speck,Wolfgang Pompe +1 more
TL;DR: In this paper, the authors developed temperature dependent stability maps that predict the stable domain structure that forms during the paraelectric to ferroelectric transition (PE→FE) and discussed the role of dislocation stabilization of domain patterns.
Journal ArticleDOI
Elastic and Piezoelectric Coefficients of Single-Crystal Barium Titanate
Don Berlincourt,Hans Jaffe +1 more
TL;DR: In this article, a complete set of elastic, piezoelectric, and dielectric constants of the tetragonal modification at 25\ifmmode^\circ\else\textdegree\fi{}C is obtained.
Journal ArticleDOI
Epitaxial yttria‐stabilized zirconia on hydrogen‐terminated Si by pulsed laser deposition
TL;DR: In this article, the yttria-stabilized zirconia films were grown on Si(100 and Si(111) by pulsed laser deposition and Rutherford backscattering spectroscopy indicates a high degree of crystalline perfection with a channeling minimum yield of 5.3%.
Journal ArticleDOI
Elastic energy release due to domain formation in the strained epitaxy of ferroelectric and ferroelastic films
TL;DR: In this paper, the concept of critical thickness, hc, for domain formation is developed for a single twin band in which the c axis of the tetragonal domains is either related by a 90° rotation about an axis in the plane of the film or by a normal about the surface normal, and the critical thickness depends only on the relative coherency strain between the substrate and film and the ratio of the domain wall energy to the stored elastic energy.
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