Calcium Fluoride Barrier Layer in Tunnel Emitter Phototransistor

Fast Switching in Magnetic Tunnel Junctions with Double Barrier Layer

Multiferroic tunnel junctions with poly(vinylidene fluoride)

Tunnel barrier enhanced voltage signal generated by magnetization precession of a single ferromagnetic layer.

We report the electrical detection of magnetization dynamics in an Al/AlOx/Ni80Fe20/Cu tunnel junction, where a Ni80Fe20 ferromagnetic layer is brought into precession under ferromagnetic resonance conditions. The dc voltage generated across the junction by the precessing ferromagnet is enhanced about an order of magnitude compared to the voltage signal observed when the contacts in this type o...

Synthesis of Calcium Fluoride Ultrafine Particles for the Preparation of Integral Asymmetric Cellulose Acetate/Calcium Fluoride Membranes

The present work reports on the synthesis of cellulose acetate (CA) asymmetric membranes with the incorporation of inorganic fluorides, CaF2 particles. These fillers of polymeric composites can, according to the literature, promote the ordering of the polymer matrix, which can lead to interesting permeation properties. In order to achieve that, fluorite (CaF2 ) fine particles were prepared by a...

FLUORIDE AND CALCIUM DISTRIBUTION IN HUMAN PLACENTA Szczecin and Tychy, Poland SUMMARY: Fluoride and calcium concentrations

Fluoride and calcium concentrations in maternal plasma and in placental tissue were determined in 30 healthy women residing in an area with a relatively low water and air fluoride (fluorine) content. The mean fluoride concentrations in maternal plasma and in marginal and central parts o f placenta were 4.27 pMlL, 42.1 pglg of ash, and 33.7 pglg of ash, respectively. The mean calcium concentrati...