The determination of barium and strontium directly from sea water by isotope dilution mass spectrometry proves to be an efficient, precise, and virtual blank free procedure. Results for an eastern Pacific profile confirm a regularly increasing barium concentration from 5 to 23 ,clg/kg at 2500 m, but strontium concentrations appear to be nearly homogeneous below 50 m at 7.6 f 0.1 I;lg/kg with a ...

We report the observation of intense extreme ultraviolet (EUV) emission from incandescently heated atomic hydrogen and atomized strontium. Typically the emission of extreme ultraviolet light from hydrogen gas is achieved via a discharge at high voltage, a high power inductively coupled plasma, or a plasma created and heated to extreme temperatures by RF coupling (e.g. > 10 6 K) with confinement...

Ferroelectric barium titanate nanoparticles (BTO NPs) may play critical roles in miniaturized passive electronic devices such as multi-layered ceramic capacitors. While increasing experimental and theoretical understandings on the structure of BTO doped have been developed over past decade, majority investigation was carried out thin-film materials; therefore, doping effect remains unclear. Esp...

Optical properties of sol-gel deposited Barium Strontium Titanate (BaxSr1-xTiO3, BST) thin films were studied to determine their suitability as light sensors. Crystallized BST formed by annealing in air at 700 °C for 1 h. Lattice parameters and grain sizes determined all the compositions. The band gap refractive index values samples from optical transmission spectra different Band compositions ...

The title compound, Sr0.6Ba0.4Nb2O6 (strontium barium niobium oxide), belongs to the group of strontium-barium niobates with varying composition of Sr and Ba. Their general formula can be written as Sr x Ba1 - x Nb2O6. Below the Curie temperature, T c , these materials indicate ferroelectric properties. The Curie temperature for SBN60 is equal to 346±0.5 K so the structure is in the ferroelectr...

Abundance ratios relative to iron for carbon, nitrogen, strontium and barium are presented for a metal-rich main sequence star ([Fe/H]=–0.74) in the globular cluster ω Centauri. This star, designated 2015448, shows depleted carbon and solar nitrogen, but more interestingly, shows an enhanced abundance ratio of strontium [Sr/Fe]≈1.6 dex, while the barium abundance ratio is [Ba/Fe]≤0.6 dex. At th...