Results 121 to 130 of about 1,290 (187)

Thickness Effect of Interlayer on the Dielectric Permittivity of BaTiO$_{3}$/Co/BaTiO$_{3}$ and BaTiO$_{3}$/Ta/BaTiO$_{3}$ Films

IEEE Transactions on Magnetics, 2012
Co and Ta inserted layers with thickness x varied from 0 to 20 nm on the dielectric permittivity of BaTiO3 (60 nm)/Co(x nm)/BaTiO3 (60 nm) (BCB) and BaTiO3 (60 nm)/Ta(x nm)/BaTiO3 (60 nm) (BTB) films fabricated on glass B270 substrates by the reactive sputtering technique was studied.
Y. Ding, Y. D. Yao, K. T. Wu, P. S. Chen, C. S. Tu, J. C. Hsu, D. S. Hung, S. F. Lee   +7 more
openaire   +1 more source

Photorefractive detection of antiparallel ferroelectric domains in BaTiO 3 and BaTiO 3 :Co crystals

Applied Physics A: Materials Science & Processing, 1998
An all-optical method involving one coherent beam of light and based on photorefractive wave mixing is used to reveal antiparallel ferroelectric domains in one pure, and two cobalt-doped, barium titanate crystals (BaTiO 3 ). Rod-shaped domains with square cross sections are revealed.
P. Mathey, P. Jullien, P. Lompré, D. Rytz   +3 more
openaire   +1 more source

Fabrication of BaTiO₃–Carbon Nanocomposite and Porous BaTiO₃

Crystal Growth & Design, 2011
A novel nanocomposite was fabricated by introducing BaTiO3 into mesoporous carbon CMK-3 with hexagonal porous structure and pore size around 3.4 nm. Nanosized BaTiO3 crystallites were fully dispersed and confined in the channels of CMK-3. This is the first combination of conventional ferroelectrics with newly developed mesoporous carbon materials ...
Ru Z. Hou, Paula Ferreira, Paula M. Vilarinho   +2 more
openaire   +1 more source

Ferromechanical phenomena in ferroelectric BaTiO₃and BaTiO₃crystals

Ferroelectrics, 1994
Abstract Experimental results have been analyzed on studies of elastoplastic deformation and fracture that occur in ferroelectric crystals of the BaTiO3, type indented by the Vickers pyramid.
S. O. Kramarov, L. G. Rozin
openaire   +1 more source

(PVDF/BaTiO/sub 3/) and (PP/BaTiO/sub 3/) films for energy storage capacitors

Proceedings of 1995 IEEE 5th International Conference on Conduction and Breakdown in Solid Dielectrics, 2002
Energy storage is nowadays very useful for applications such as energy recuperation or energy compensation systems. For this purpose batteries are very powerful, but the charging time remains too long. On the other hand, capacitors can be charged instantaneously but the energy density is low (the capacitor to accumulator energy ratio is 1/2000).
E. Aulagner, J. Guillet, G. Seytre, C. Hantouche, P. Le Gonidec, G. Terzulli   +5 more
openaire   +1 more source

Dielectric properties of ultrafine grained BaTiO/sub 3/

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1989
The dielectric constant and spontaneous polarization of fine-grained BaTiO(3) prepared from powder produced by metalloorganic decomposition technology were studied. The room-temperature dielectric constant of BaTiO(3) was found to increase sharply with increase in grain size, reach a maximum at about 0.4 mum, and decrease with further increase in grain
A S, Shaikh, R W, Vest, G M, Vest
openaire   +2 more sources

Multibeam Coupling In Photorefractive BaTiO 3

SPIE Proceedings, 1989
Theoretical and experimental results are presented for simultaneous multibeam coupling in photorefractive BaTiO3. Within a single crystal, multiple signals are amplified through a coupling processs that employs a single pump beam. The amplification of each signal results from both coupling between signal and pump beam and coupling between different ...
C. Denz, L. Klees, T. Tschudi
openaire   +1 more source