Paramagnetic Species in Ion Implanted Phosphate Glasses

Optical and Thermal Properties of Mixed Alkali Phosphate Based Glasses

Glassy samples with a composition of 40P2O5&ndash;30V2O5&ndash;(30-x)Li2O&ndash; xK2O, 0<x<30 (mol %) were prepared by the conventional melt quenching technique in two forms of bulk and blown film. X-ray diffraction patterns corroborated the amorphous feature of the samples. Density of samples was investigated by using Archimedes principle. Based on absorption and reflection spectra, indirect a...

Avoiding dislocations in ion-implanted

Damage from ion implantation in Si can lead to dislocation formation during subsequent thermal annealing. These dislocations may sharply degrade device performance, making it desireable to suppress their formation. In this paper the criterion for dislocation formation is reviewed. Knowing this criterion suggests several ways to avoid dislocation formation in high dose implants for device applic...

Titanium-containing bioactive phosphate glasses.

The use of biomaterials has revolutionized the biomedical field and has received substantial attention in the last two decades. Among the various types of biomaterials, phosphate glasses have generated great interest on account of their remarkable bioactivity and favourable physical properties for various biomedical applications relating to both hard and soft tissue regeneration. This review pa...

Photosensitivity and volume gratings in phosphate glasses for rare-earth-doped ion-exchanged optical waveguide lasers

Anomalous Spin Dynamics in the Paramagnetic Phase of Spin Glasses

Neutron Spin Echo experiments revealed an anomalous paramagnetic phase above the transition temperature in the insulating E U O . ~ S ~ ~ . ~ S , similarly to previously studied metallic spin glasses. The universal signatures of this phase underline the fundamental r61e spin non-conserving forces (anisotropy) and possibly activated processes play in bringing about the spin glass transition. Pre...