نتایج جستجو برای: samarium oxide
تعداد نتایج: 177251 فیلتر نتایج به سال:
Combined radioluminescence, afterglow and thermoluminescence experiments on single-crystal samples of co-doped CsI:Tl,Sm suggest that samarium electron traps scavenge electrons from thallium traps and that electrons subsequently released by samarium recombine non-radiatively with trapped holes, thus suppressing afterglow. Experiments on single crystals support the inference that electrons tunne...
The adsorption and reaction characteristics of a Ba/Sr/Sma03 catalyst for methane coupling has been investigated using the TAP (Temporal Analysis of Products) reactor system. Puhed adsorption experiments using methane, oxygen and krypton at temperatures ranging from 17°C to 300°C show that the transient response of methane is similar to that of Kr and is either not adaorbed, or weakly adsorbed ...
Anchoring samarium oxide nanoparticles on reduced graphene oxide for high-performance supercapacitor
The formation of two-dimensional electron gases (2DEGs) at complex oxide interfaces is directly influenced by the oxide electronic properties. We investigated how local electron correlations control the 2DEG by inserting a single atomic layer of a rare-earth oxide (RO) [(R is lanthanum (La), praseodymium (Pr), neodymium (Nd), samarium (Sm), or yttrium (Y)] into an epitaxial strontium titanate o...
Vertical interfaces in vertically aligned nanocomposite thin films have been approved to be an effective method to manipulate functionalities. However, several challenges with regard to the understanding on the physical process underlying the manipulation still remain. In this work, because of the ordered interfaces and large interfacial area, heteroepitaxial (BaTiO3)1-x:(Sm2O3)x thin films hav...
Many years ago while studying for a degree in mineralogy, I was privileged to visit the Russian Ilmen Mountains, host to two minerals from which several rare-earth elements were discovered — monazite ((Ce, La, Nd, Th)PO4), and another mineral that was first described in 1839 by the German mineralogist Gustav Rose. He found uranium and tantalum in its composition and thus proposed the name urano...
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