Properties of barium-strontium titanate dielectrics
نویسندگان
چکیده
منابع مشابه
Pyroelectric properties of barium strontium titanate films: Effect of thermal stresses
A nonlinear thermodynamic model is used to investigate the influence of thermal stresses on the room temperature RT pyroelectric properties of 001 -textured polycrystalline barium strontium titanate BaxSr1−xTiO3, BST films with four different compositions on three integrated circuit-friendly substrates: Si, 0001 and 1̄1̄20 sapphire. It is found that the in-plane tensile thermal strain in BST incr...
متن کاملDielectric and pyroelectric properties of barium strontium titanate films on orthorhombic substrates with „110... / / „100... epitaxy
The role of anisotropic misfit strains on the spontaneous polarization, dielectric properties, and pyroelectric response of 110 oriented Ba0.6Sr0.4TiO3 BST 60/40 thin films on 100 orthorhombic substrates is analyzed theoretically. The anisotropic in-plane strain state and the rotation of the elastic and the electrostrictive constants of the BST 60/40 films result in strongly directional and uni...
متن کاملThe effect of stress on the dielectric properties of barium strontium titanate thin films
Barium strontium titanate thin films are being developed as capacitors in dynamic random access memories. These films, grown on silicon substrates, are under tensile residual stress. By a converse electrostrictive effect, the in-plane tensile stress reduces the capacitance in the thickness direction of the film. We measured the substrate curvature change upon the removal of the film, and found ...
متن کاملSynthesis of single-crystalline perovskite nanorods composed of barium titanate and strontium titanate.
We report the solution-based synthesis of single-crystalline nanorods composed of barium titanate (BaTiO3) and strontium titanate (SrTiO3), which yields well-isolated nanorods with diameters ranging from 5 to 60 nm and lengths reaching up to >10 mum. Electron microscopy and diffraction measurements show that these nanorods are composed of single-crystalline cubic perovskite BaTiO3 and SrTiO3 wi...
متن کاملAn Investigation of PLD-Deposited Barium Strontium Titanate (BaxSr1-xTiO3) Thin Film Optical Properties
Reflectance and transmittance parameters of pulsed laser deposited barium strontium titanate (BST) were investigated using spectrophotometric methods. Three stoichiometries consisting of BaxSr1−xTiO3 (x = 0.30, 0.40, 0.50) were deposited on glass substrates using oxygen partial pressures of 1.3 Pa ± 0.13 Pa at 500 ̊C. Subsequently, the measured optical parameters were employed to determine the r...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1947
ISSN: 0091-0635
DOI: 10.6028/jres.038.017