Designing nanostructured materials with high dosimetric efficiency is a great challenge in radiation dosimetry research. From rare-earth series, yttrium oxide is considered as excellent host matrix for rare-earth ions, leading to formation of advanced functional materials with optical, mechanical, chemical, and thermal properties notably improved. Nevertheless, there is a lack of information wh...

Rare-earth-doped laser materials show strong prospects for quantum information storage and processing, as well as for biological imaging, due to their high-Q 4f↔4f optical transitions. However, the inability to optically detect single rare-earth dopants has prevented these materials from reaching their full potential. Here we detect a single photostable Pr(3+) ion in yttrium aluminium garnet na...

Rare-earth tantalates, with high density and monoclinic structure, and niobates with monoclinic structure have been paid great attention as potential optical materials. In the last decade, we focused on the crystal growth technology of rare-earth tantalates and niobates and studied their luminescence and physical properties. A series of rare-earth tantalates and niobates crystals have been grow...

J. G. He, Y. Li, X. X. Xue, H. Q. Ru, H. Yang School of Material and Metallurgy, Northeastern University, Shenyang, Liaoning, China. X. W. Huang National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co., Ltd., Beijing, China In this paper the removal of fl uoride from fl uoride-bearing cerium sulfate soluti...

Bezoar is a mass formed by indigested materials. They are a rare cause of intestinal obstruction. They are most frequently located in stomach. Incidence of bezoar located in duodenum is very rare. We report a case of 47-year-old male patient who suffered from gastric outlet obstruction due to a bezoar located in duodenum.

Although the gastrointestinal tract is susceptible to the deposition of amyloid materials with systemic disease, localised amyloidosis of the gut is very rare.' Complications associated with amyloidosis of the gastrointestinal tract are uncommon and colonic perforation is exceptionally rare. We report a case ofperforation of the sigmoid colon secondary to localised amyloidosis and review other ...

The development of graphene oxide/rare earth complexes luminescent materials is limited due to the strong quenching ability oxide. However, hybrid with pyromellitic acid (PMA) as ligand not only have better performance, but also stronger luminescence intensity. Herein we tested effect carboxylic structure PMA on intensity materials. Phthalic (PA), Isophthalic (i-PA) and Terephthalic (p-PA) are ...

The metal-insulator transition and the intriguing physical properties of rare-earth perovskite nickelates have attracted considerable attention in recent years. Nonetheless, a complete understanding of these materials remains elusive. Here we combine X-ray absorption and resonant inelastic X-ray scattering (RIXS) spectroscopies to resolve important aspects of the complex electronic structure of...

geometry in chemically synthesized nanoscale magnetite rings M. Eltschka,1,a) M. Klaui,1,b) u. Rudiger,1 T. Kasama 2 L. Cervera-Gontard 3,a) R( E. Ounin-Borkowski,3,a) F. LUO,4 L. J. Heyderman,4 C.-J. Jia,5 L.-O. Sun,!; and C.-H . Van5 I Ftlchbereich Physik, Universitiit Konstanz, UniversitiilsstrafJe 10, 78457 Konstanz, GermallY 2Department of Materials Science and Metallurgy, University of Ca...

The prospect of controlling the magnetization (M) of a material is of great importance from the viewpoints of fundamental physics and future applications of emerging spintronics. A class of rare-earth orthoferrites RFeO3 (R is rare-earth element) materials exhibit striking physical properties of spin switching and magnetization reversal induced by temperature and/or applied magnetic field. Furt...