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Magnetic interactions and spin-reversal mechanism in ErMn1-xCoxO3-delta samples
(Springer, 2011-12-01)
Manganese-based oxides present a very complex magnetic phase diagram, and many of their basic physical properties and magnetic interaction need more exploration. At the crystallographic level, the magnetic properties of ...
Influence of milling time on mechanically assisted synthesis of Pb0.91Ca0.1TiO3 powders
(Elsevier B.V., 2007-01-01)
Pb0.91Ca0.1TiO3 powders (PCT) were prepared by mechanochemical synthesis from high-energy ball milling process. The influence of milling time on the phase formation, crystal structure, specific surface area, density and ...
SrBi2Nb2O9 thin films deposited by dip coating using aqueous solution
(Elsevier B.V., 1999-01-01)
A new approach for SrBi2Nb2O9 (SBN) thin films synthesis using aqueous solution was successfully experienced. The deposition solution was prepared from Sr-Bi-Nb mixed-citrate solution, requiring no special atmosphere and ...
Propriedades eletrônicas e estruturais do PbTiO3: teoria do funcional de densidade aplicada a modelos periódicos
(Sociedade Brasileira de Química, 2005-02-01)
Calculations based on density functional theory at the B3LYP hybrid functional level applied to periodic models have been performed to characterize the structural and electronic properties of PbTiO3. Two different slab ...
Preparation and characterizations of Ba0.8Ca0.2TiO3 by complex polymerization method (CPM)
(Elsevier B.V. Sa, 2008-10-06)
Ba0.8Ca0.2TiO3 (BCT) was prepared by the complex polymerization method (CPM) using Ba0.8Ca0.2CO3 and [Ti[OCH(CH3)(2)](4) as starting materials. The powders were crystallized at several temperatures from 400 to 1200 degrees ...
Luminescence effect in amorphous PLT
(Elsevier B.V., 2005-05-01)
Amorphous and crystalline powder of PLT phase was synthesized by using the Pechini method. Infrared (FTIR) analysis of the polymeric resin shows intense bands of organic materials from 250 to 1620 cm(-1). X-ray diffraction ...
X-ray powder data and bond valence of La0.65Sr0.35MnO3 after Rietveld refinement
(J C P D S-int Centre Diffraction Data, 2002-06-01)
Powder X-ray diffraction (XRD) data were collected for La0.65Sr0.35MnO3 prepared through an alternative method from a stoichiometric mixture of Mn2O3, La2O3, and SrO2, fired at 1300 degreesC for 16 h. XRD analysis using ...
An approach to analyzing synthesis, structure and properties of bismuth titanate ceramics
(Int Inst Science Sintering (i I S S), 2005-09-01)
The family of bismuth titanate, Bi(4)Ti(3)O(12) (BIT) layered-structured ferroelectrics materials is attractive from the viewpoint of such as their application as electronic materials dielectrics, piezoelectrics and ...
Improvement of the ferroelectric properties of ABO(3) (A= Pb, Ca, Ba; B=Ti, Zr) films
(Elsevier B.V., 2005-01-01)
High-quality ABO(3)/LaNiO3 (A = Ph, Ca, Ba; B = Ti, Zr) hetero structures have been grown on LaAlO3 (1 0 0) substrate by the chemical solution deposition method and crystallized by a microwave oven technique. The structural, ...
Electronic and structural properties of the (001) SrZrO3 surface
(Elsevier B.V., 2007-07-01)
The structural and electronic properties of SrZrO3 selected surfaces were investigated by means of density functional theory applied to periodic calculations at B3LYP level. The relaxation effects for two symmetric and ...