REE
Rare earth elements are a group of seventeen chemical elements that occur together in the periodic table (see image). The group consists of yttrium and the 15 lanthanide elements …
Rare Earth Elements
Overview. The rare earth elements (REEs) are comprised of the lanthanide elements plus scandium and yttrium, which have similar physical properties and are often found in the …
Rare-earth element | Uses, Properties, & Facts
The rare earths share many common properties. This makes them difficult to separate or even distinguish from each other. There are very small differences in solubility and …
Standard state entropies of the aqueous rare earth ions
Raman Spectroscopic Study on the Coordination Behavior of Rare Earth Ions in N-Methylacetamide. The Journal of Physical Chemistry B 2008, 112 (42), 13355-13358.
RARE EARTH DISILICIDES1 | The Journal of Physical Chemistry
This article is cited by 58 publications. Lu Xu, Guoquan Li, Shuyun Wang, Hong Lu, Huayun Wang, Changyu Hu, Xuang, Yonghui Xiao, Yunde Xiao, Xiangyu Lu.
The Rare-Earth Elements— Vital to Modern …
to as the "lanthanides." The rare-earth element promethium (atomic number 61) is not included in discussions of REE deposits because the element is rare and unstable in nature. Yttrium (atomic number 39) is commonly regarded as an REE because of its chemical and physical similarities and affinities with the
How rare earth elements make modern technology …
Chemistry. How rare earth elements' hidden properties make modern technology possible. These 17 metals fine-tune light and generate powerful magnetic fields. In August, China finished...
Room-temperature addressing of single rare-earth atoms in …
Rare-earth (RE) atoms in solid-state materials are attractive components for photonic quantum information systems because of their coherence properties even in high-temperature environments. We have experimentally performed the single-site optical spectroscopy and optical addressing of a single RE atom in an amorphous silica optical …
Competing Energy Transfer-Modulated Dual Emission in Mn
School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China ... Effective Energy Transfer Boosts Emission of Rare-Earth Double Perovskites: The …
Rock-to-metal ratios of the rare earth elements
The results indicate that the rock-to-metal ratios for the total rare earth elements ranged from a low of 1.6 × 10 1 to a high of 3.6 × 10 3, with operations in Brazil and Russia having the lowest ratios and ion-adsorption clays operations in China and Myanmar having the highest. For comparison, the global average rock-to-metal ratio for …
Characteristics of rare earth metal | Britannica
rare earth metal, Any of a large class of chemical elements including scandium (atomic number 21), yttrium (39), and the 15 elements from 57 (lanthanum) to 71 (see lanthanides). The rare earths themselves are pure or mixed oxides of these metals, originally thought to be quite scarce; however, cerium, the most plentiful, is three times as abundant as lead …
Rare earth elements: A review of applications
Rare earth elements (REE) include the lanthanide series elements (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) plus Sc and Y. Currently these …
The Rare-Earth Elements— Vital to Modern …
List of the rare-earth elements found in natural deposits—the "lanthanides" plus yttrium. [Average abundance (concentration) in the earth's crust (in parts per million) from Lide …
A review of structures and physical properties of rare earth
We prepared a new rare-earth compound, Eu9MgS2B20O41 (EMSBO) and characterized its structural and physical properties. EMSBO consists of triple-Kagomé-layer slabs separated by non-magnetic ions ...
Spin Hall torques generated by rare-earth thin films
Abstract. We report an initial experimental survey of spin Hall torques generated by the rare-earth metals Gd, Dy, Ho, and Lu, along with comparisons to first-principles calculations of their spin Hall conductivities. Using spin torque ferromagnetic resonance (ST-FMR) measurements and dc-biased ST-FMR, we estimate lower bounds …
ZnO-Bi2O3-B2O3 glasses doped with rare earth oxides: …
In this article, newly group of zinc bismo-borate (ZnO–Bi 2 O 3 –B 2 O 3) glasses doped with different rare earth oxides (La 2 O 3, CeO 2, Nd 2 O 3, and Gd 2 O 3) have been fabricated. The impact of rare earth ions on the physical, structural characteristics, neutron, and gamma radiation competences of the proposed glasses …
Properties, Compounds, and Complexes of Rare …
The rare earth elements comprise Sc, Y, and the lanthanide elements (La–Lu). Their physical properties and physicochemical behaviors are determined by …
Enrichment of rare earth elements from coal and coal by …
In general, rare earth (RE)-bearing minerals in the coal are finely dispersed and smaller than 10 µm in size [12,[17][18][19][20], which drastically reduces the efficacy of the physical ...
Rare Earth Engineering in (R =, Lu) Topological Kagome …
4CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, Anhui 230031, China ... between rare-earth magnetism and topological electron structure, indicating the rare-earth elements can effectively engineer the Chern quantum phase in kagome magnets.
Rare Earth hypothesis: Why we might really be …
The Rare Earth hypothesis argues that a confluence of very specific environmental factors is responsible for Earth's ability to support complex life. These same factors are very unlikely to be ...
Descriptive Process Mineralogy to Evaluate Physical …
Rare earth elements (REE) are indispensable for industries such as magnetic, phosphorus, metal alloys, catalysts, ceramics, glass, polishing and defense systems due to their unique physical and chemical properties. Currently, China is the largest supplier in the world, accounting for production of more than 95% of the world's …
(PDF) Physical and electrical properties enhancement of rare-earth
Influence of larger rare-earth Nd and intermediate rare-earth Dy and Ho on the structure, doping behavior, dielectric, and piezoelectric properties of (Na0.53K0.47)(0.942)Li0.058NbO3 (KNNLN) lead ...
Tissue deposition and toxicological effects of commercially
Rare earth oxide (REO) materials are found naturally in earth's crust and at the nanoscale these REO nanoparticles exhibit unique thermal, electrical, and physicochemical properties. REO nanoparticles are widely used in different industrial sectors for ceramics, glass polishing, metallurgy, lasers, …
The effect of the rare earth A-site cation on the structure, …
In this study, the influence of the rare earth (RE) ions on the structure, morphology, magnetic behavior, dielectric properties, and application of AFeO 3 perovskite was studied. The perovskite nanoparticles AFeO 3 (A: La, Nd, and Sm) were synthesized using the citrate auto combustion method. The x-ray diffraction (XRD) confirmed that the …
Thermo-physical properties of rare-earth hexaaluminates …
The thermal conductivities decrease in going from LaMgAl 11 O 19 to GdMgAl 11 O 19, which suggests the simultaneous enhancement of Umklapp scattering and imperfection scattering with increasing atomic mass and decreasing ionic radius of the rare-earth ions. 37 The increase in the average atomic mass and mass difference between …
Ternary Rare-Earth Manganese Bismuthides: Structures and Physical
Investigations in the ternary RE−Mn−Bi systems where RE is an early rare earth element have revealed the existence of the polybismuthides RE3MnBi5 (RE = La−Nd), previously known only for the Ce member, and the new compound Sm2Mn3Bi6. Their structures were determined from single-crystal X-ray diffraction data. The …
Three-dimensional cavity quantum electrodynamics with a rare-earth …
Three-dimensional cavity quantum electrodynamics with a rare-earth spin ...
Science of Rare Earth Elements | Science History Institute
The rare earth elements are 17 metallic elements found in the middle of the periodic table. Some of the rare earth elements have unusual magnetic, luminescent, and electrical properties that make them valuable for industrial applications and in manufactured products. But because these elements have a very similar electron structure (as ...