Namely, it is possible to increase the sensitivity of the curve of intensity ratio between the host and samarium
luminescence if an appropriately selected part of temporal evolution is used in calculation.
The absorption band edge of undoped ZnO was spotted at 377 nm and it got shifted slightly for the Sm-doped samples which might be attributed to surface effects, modification in the crystallite size, morphology or evidence that the electronic structure of pure ZnO is changed by the doping of samarium
While, peak shifting of CeO2 powder calcined at 600, 700, 800 and 900 C indexed that samarium
was doped into the lattice of cerium oxide.
Coulomb and nuclear excitation effects on [sup.16]O scattering from samarium
The magnetic activator device (MAD) III consists of an upper and lower plate with two buccal pairs of attracting samarium
cobalt magnets (6mm x 4mm x 5mm) placed eccentrically in the sagittal direction (10).
Do, "A novel approach for monodisperse samarium
orthovanadate nanocrystals: controlled synthesis and characterization," Journal of Physical Chemistry C, vol.
Neodymium and samarium
are only a portion of the REE market, which is an even smaller part of the global metals market.
Another feature focuses on the efforts of Toronto-based Avalon Rare Metals to mine rare earth elements like samarium
, praseodymium and dysprosium, which are found near Yellowknife in the Canadian North.
Neodymium and samarium
make up only a portion of the REE market, which is an even smaller part of the global metals market, but these two metals have a disproportionate influence on all high-tech businesses, especially the defense industry.
This breakthrough was driven by economics; the best magnets at the time were made of cobalt and the rare earth samarium
, and the price of cobalt was rising rapidly.
The rare earth sector covers companies with operations involving exploration, extraction, transport, processing or any other business involving any of the following 17 rare earth elements: Scandium, Yttrium, Lanthanum, Lutetium, Ytterbium, Thulium, Erbium, Holmium, Dysprosium, Terbium, Gadolinium, Europium, Samarium
, Promethium, Neodymium, Praseodymium, and Cerium.
Soil assays for REE's include Samarium
(Sm), were reported with grades of up to 218 ppm (g/t) and Dysprosium (Dy) with grades of up to 98.6 ppm (g/t), Neodymium (Nd) with grades of up to 1190 ppm (g/t), Ytterbium (Yb) with grades of up to 31.3 ppm (g/t) and Yttrium (Y) with grades of up to 472 ppm (g/t).