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Structural studies of BaTiO3:Er3+ and BaTiO3:Yb3+ powders synthesized by hydrothermal method
Journal of Rare Earths, 2014Erbium and ytterbium doped barium titanate nanopowders were prepared using the hydrothermal method. A barium titanate structure doped with rare earth ions manifested new characteristics and improved the field of application of optical devices such as trichromatic tubes, LCD displays, lamps, and infrared lasers. In this work, BaTiO3:Er3+ and BaTiO3:Yb3+
Garrido-Hernández, A. +6 more
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Dielectric and optical properties of BaTiO3/SrTiO3 and BaTiO3/BaZrO3 superlattices
Journal of Applied Physics, 2002BaTiO 3 (BTO)/SrTiO3 (STO), and BaTiO3/BaZrO3 (BZO) artificial superlattices were fabricated by the molecular beam epitaxy process and their dielectric properties and refractive indices were measured. Superlattices formed on Nb-doped STO substrates showed large leakage currents in comparison with those on pure STO substrates.
Takaaki Tsurumi +4 more
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Piezowiderstandseffekt in BaTiO3-Halbleitern
Solid-State Electronics, 1967Zusammenfassung Bei BaTiO 3 -Halbleitern wird eine hohe Druckabhangigkeit des Widerstandes gefunden. Aus dem Impedanzverhalten ergibt sich, dass dieser Piezowiderstandseffekt im wesentlichen in den Korngrenz-Sperrschichten lokalisiert ist, die auch fur den anomalen Widerstandsanstieg oberhalb der Curietemperatur massgebend sind.
M. Guntersdorfer, W. Heywang
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Fracture Toughness of BaTiO3 and BaTiO3-Al2O3 Composite under Electric Field
2005In order to investigate the effect of electric polarization on fracture toughness of monolithic BaTiO3 and 5 mol% BaTiO3-Al2O3 composite (5B95A), indentation fracture tests were conducted on unpoled and poled samples under various applied electric fields.
Sirirat Rattanachan +2 more
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Dislocations in BaTiO3 ceramics
Physica Status Solidi (a), 1988Bulk dislocations in cubic and tetragonal BaTiO3 are analysed by TEM. Dislocations with Burgers vectors of the type b = a{100} lying along {010} directions are found in stoichiometric material whereas 72° dislocations are predominant in non stoichiometric material. Stacking faults (extended compositional defects in this structure) are observed on {100}
O. Eibl +3 more
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Refinement of hexagonal BaTiO3
Acta Crystallographica Section C Crystal Structure Communications, 1994Pure single crystals of barium titanate have been synthesized and the structure refined using the atomic coordinates of Burbank & Evans [Acta Cryst. (1948), 1, 330-336]. The short Ti-Ti distance in the face-sharing Ti 2 O 9 group was determined to be 2.690 (4) A, which is significantly shorter than in other barium titanate ...
J. Akimoto, Y. Gotoh, Y. Oosawa
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Anisotropic selfdiffraction in BaTiO3
Applied Physics B Photophysics and Laser Chemistry, 1984Anisotropic selfdiffraction in BaTiO3 crystals utilizing the large electrooptic coefficientr42 is described. In the absence of an external electric field the generated space charge field is determined by diffusion processes. The theory is in agreement with the experimental results.
N. V. Kukhtarev +4 more
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Optical Materials, 2006
Abstract In this paper experimental results concerning the optical bistability of a ferroelectric monocrystal of BaTiO 3 are presented. Two laser beams were used to interact with the monocrystal which resulted in the bistability of the intensity of the transmitted wave. This was achieved without the application of any optical resonator. The feedback
R. Ciołek +5 more
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Abstract In this paper experimental results concerning the optical bistability of a ferroelectric monocrystal of BaTiO 3 are presented. Two laser beams were used to interact with the monocrystal which resulted in the bistability of the intensity of the transmitted wave. This was achieved without the application of any optical resonator. The feedback
R. Ciołek +5 more
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Journal of Electroceramics, 2001
Thermoelectricity of mixed ionic electronic conductor BaTiO3+δ is thermodynamically analyzed, and measured across the mixed n/p regime of both undoped and 1.8 m/o A1-doped BaTiO3 at elevated temperatures. There can be 4 different measurement conditions with respect to the nonstoichiometry (δ) redistribution and types of atmosphere gases used to control
Han-Ill Yoo, Chang-Rock Song
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Thermoelectricity of mixed ionic electronic conductor BaTiO3+δ is thermodynamically analyzed, and measured across the mixed n/p regime of both undoped and 1.8 m/o A1-doped BaTiO3 at elevated temperatures. There can be 4 different measurement conditions with respect to the nonstoichiometry (δ) redistribution and types of atmosphere gases used to control
Han-Ill Yoo, Chang-Rock Song
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Annual Meeting Optical Society of America, 1988
White light images are used to perform real-time spatial filtering in BaTiO3 in two different geometries. White light images act as spatial filters by erasing certain frequency components of photorefractive Fourier transform holograms. As a result, these frequency components are suppressed in the reconstructed holographic images.
Lenore Pugliese, G. Michael Morris
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White light images are used to perform real-time spatial filtering in BaTiO3 in two different geometries. White light images act as spatial filters by erasing certain frequency components of photorefractive Fourier transform holograms. As a result, these frequency components are suppressed in the reconstructed holographic images.
Lenore Pugliese, G. Michael Morris
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