Ferroelectric domain structures of a 〈001〉-oriented lead magnesium niobate–lead titanate tetragonal crystal were examined under cyclic bipolar electric fields. Complex patterns of orthogonal domain strips were found to emerge from a simple structure of parallel strips of 90°domains. Near the boundary between the two orthogonal sets of the domain strips, domains were forced to intersect, creatin...

We report the observation of contrasting magnetic behavior in cobalt ferrite CFO thin films deposited on single crystalline magnesium oxide MgO and strontium titanate STO . Epitaxial films on MgO 100 with a lattice mismatch of 0.35% showed out-of-plane anisotropy whereas the films on STO 100 with a lattice mismatch of 7.4% displayed in-plane anisotropy. Stress anisotropy calculated from angle-d...

A highly sensitive lead magnesium niobate-lead titanate (PMN-PT) single crystal resonator coated with a thin film of polymethylmethacrylate (PMMA) useful for detecting chemical agents such as acetone, methanol, and isopropyl alcohol (IPA) is presented. Swelling of the cured PMMA polymer layer in the presence of acetone, methanol, and isopropyl alcohol vapors is sensed as a mass change transduce...

Fire disaster is the major factor to endanger the public and environmental safety. People lost their life during fire disaster mainly be attributed to the dense smoke and toxic gas under combustion, which hinder the escape of people and the rescue of firefighters under fire disaster. The smoke suppression effect of several transitional metals oxide on the epoxy resin treated with intumescent fl...

Biomaterials are increasingly used for bone tissue regeneration because of their potential to overcome the morbidity caused by autologous grafts and allografts. A combination properties is required, as biocompatibility, osteoconductivity, good mechanical strength fracture toughness. In this research, a compound alumina matrix with calcium titanate phosphate proposed. Magnesium stearate was poro...

Layer-by-layer growth of titanate nanotubes on glass substrates was achieved by alternate layer deposition using an aqueous solution of colloidal titanate nanotubes and that of a polycation. Even a single layer thin film of titanate nanotube shows high photoinduced hydrophilicity.

The effect of heteroepitaxy-induced constraint on the structure and piezoelectric properties of the relaxor ferroelectric lead magnesium niobate–lead titanate ~PMN–PT! were investigated. Relaxor PMN–PT epitaxial thin films with oxide electrodes were grown by pulsed-laser deposition on ~100! LaAlO3 substrates. We observe a systematic decrease in the phase transition temperature ~temperature at w...

An electric field tunable magnetic hysteresis loop was studied in a multiferroic heterostructure consisting of a 25μm thick Metglas® ribbon affixed to a lead magnesium niobate–lead titanate (PMN–PT) crystal. This multiferroic heterostructure exhibits a considerably strong converse magnetoelectric effect, CME = −80%, where CME = [M(E)−M(0)]/M(0), and a converse magnetoelectric coupling constant,...

Gold nanoparticles were prepared and characterized on protonated (H-form) titanate nanotubes (TiONTs) and nanowires (TiONWs). The chemical nature and morphology of gold particles were monitored by X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, X-ray diffraction (XRD) and high resolution electron microscopy (HRTEM). The optical properties of Au-containing titanate nanowires were exp...