A large quantity of ultrafine tetragonal barium titanate (BaTiO3) nanoparticles is directly synthesized at room temperature. The crystalline form and grain size are checked by both X-ray diffraction and transmission electron microscopy. The results revealed that the perovskite nanoparticles as fine as 7 nm have been synthesized. The phase transition of the as-prepared nanoparticles is investiga...

Cobalt ferrite (CoFe2O4)/barium titanate (BaTiO3) particulate composites exhibiting high magnetoelectric coefficients were synthesized from low-cost commercial precursors using mechanical ball milling followed by high-temperature annealing. CoFe2O4 (20 nm–50 nm) and either cubic or tetragonal BaTiO3 nanoparticle powders used for the synthesis. It was found that utilizing a 50 nm powder as precu...

Memristors based on oxide tunnel junctions are promising candidates for energy efficient neuromorphic computing. However, the low power sensing of nonvolatile resistive state is an important challenge. We report optically induced a memristor La0.7Sr0.3MnO3/BaTiO3/In2O3:SnO2 (90:10) heterostructure with 3 nm thick BaTiO3 ferroelectric barrier. The memristive response originates from modulation i...

A series of PA1111/BaTiO3 nanocomposites with different BaTiO3 contents are prepared by the in-situ salification-melt polymerization procedure. The morphological, spectroscopic studies and property characterization conducted. results indicate that proposed compositing method can effectively disperse nanoparticles in PA1111 matrix, as-prepared exhibit improved dielectric piezoelectric properties...

Recently, perovskite-type BaTiO3 showing sharp X-ray diffraction peak comparable to that synthesized by a conventional solid-state reaction was obtained mixing Ba(OH)2 and TiO2 hydrous gel leaving the mixture at 323 K or less. However, cubic crystal system, which different from reaction. In this study, structural analysis of cubic-BaTiO3 technique conducted, factors form structure were investig...

High reliability capacitors require a dielectric layer with both high electrical resistivity and high static dielectric constant. The most commonly used material platform for low cost, base metal electrode capacitors (BME) consists of nickel electrodes and barium titanate-based dielectric layers. Barium titanate (BaTiO3) is ferroelectric material with dielectric constant that depends on factors...

Barioperovskite, ideally BaTiO3, is a new member of the perovskite group. It is found as microto nano-crystals in a host of amorphous material contained within hollow, tubular inclusions in benitoite from the Benitoite Mine, San Benito County, California, U.S.A. The mean chemical composition determined by electron-microprobe analysis is (wt%) BaO 65.46, TiO2 34.57, SiO2 0.89, sum 100.92. The em...

The promise of coupling between magnetization and electric polarization and the potential to manipulate one through the other has become in recent years a driving force for many experimental works on multiferroic materials. The ultimate goal of these studies would be a single-phase material exhibiting a strong coupling between inherent ferromagnetic and ferroelectric ordering at room temperatur...

The surface chemistry of single crystal barium titanate (BaTiO3) has been studied using temperature programmed desorption (TPD). TPD measurements were performed with several probe molecules, including methanol and carbon dioxide. The role of oxygen vacancies in the adsorption and reaction of these molecules was examined by annealing the crystal under oxidizing or reducing conditions prior to pe...