rare-earth ions
Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions
... Recently, an intensive study on borate glass has been conducted for scientific and technological demand. The properties of borate glass such as high sensitivity and low cost preparation offer better prospect especially ...
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Lattice Site of Rare-Earth Ions in Stoichiometric Lithium Niobate Probed by OH− Vibrational Spectroscopy
... hydroxyl ions in RE 3+Nb -OH – complexes follow the trend observed for ODR ions as shown in Figure 3a, their values differ by about 20–30 cm −1 ...the rare-earth ...
9
Spectral changes and wavelength dependent thermoluminescence of rare earth ions after X ray irradiation
... of rare earth doped materials after X-ray irradiation typically vary with the glow peak ...to rare earth sites which can involve different higher energy states of the rare earth ...
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Study of Characterization and Energy Transfer Mechanism in NaCe(PO3)4dopedwith Rare Earth ions(Dy3+,Tb3+,Yb3+andNd3+)
... although rare earth ions possess interesting luminescence properties which is rather ...Amongst rare earth ions, Ce 3+ exhibits rather peculiar emission which is in form of a two ...
7
An analysis of the solid state spectra of trivalent rare earth ions
... multiplet levels.. value was ealau1sted... tll~'ugh probably very sli&ht.. Only two states.. lest intensive lines of the entire a bsorpt1em · speetra.. Xhe thre~ lowes[r] ...
108
Quantum repeaters with individual rare-earth ions at telecommunication wavelengths
... forming entanglement swapping operations between the entangled states that span each elementary link. Due to the availability and diversity of component systems and the strong light-matter coupling offered by atomic en- ...
13
Photon-echo rephasing of spontaneous emission from an ensemble of rare-earth ions
... S , H ef f = H ˜ S 丢 I E + I S 丢 H E . 共 3 兲 Physically, the control Hamiltonian applied will not be per- fect, particularly since the qubit in this experiment is actually an ensemble of solitary nuclear-spin systems. As ...
141
Nephelauxetic effect of low phonon antimony oxide glass in absorption and photoluminescence of rare-earth ions
... Initially, investigation of glasses as host materials for RE photoluminescence was confined to the conventional glass formers like silicates, borates, and phosphates [4,7-9]. In the 1980’s, RE 3+ -doped fluoride glasses ...
61
Rare earth doping of silicon
... 2.5 Nonradiative transitions Rare earth ions in solids can also undergo nonradiative transitions as a result of their interaction with the host material. Since there is a large variation in ...
165
Rare earth metal-containing ionic liquids
... of rare earth-based ionic liquids and an argumentation of exponential growth of interest in these ...the rare earth ions and their preferences in ability to coordinate with different ...
16
Rare Earth
... the rare earth has been ...of rare earth elements creates 2,000 tons of mine ...of rare earth ...a rare earth producer pays a large sum of money for machinery or ...
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Ligand Effects on Kinetic and Thermodynamic Properties of Complexes of the Non-Traditional Rare-Earth (II) Ions
... their valence 4f electrons are radially contracted and do not extend past the inert gas electron configuration [Xe]. 3 This leaves the electronic structure and thus optical transitions largely unperturbed by crystal ...
251
The Market For The "Not-So-Rare" Rare Earth Elements
... name, rare earth metals are actually not rare at all in terms of the quantity present in the earth’s ...these rare earth elements scarce are the difficulties presented in mining and ...
8
Electrochemical Recovery of Rare Earth Elements from Magnets: Conversion of Rare Earth Based Metals into Rare Earth Fluorides in Molten Salts
... the rare earth metal from Nd magnet by ...of rare earth metal from neodym- ium magnet scrap by molten fluoride salt extraction and elec- ...
6
Studies on Coordination Behaviour of a Polydentate Schiff Base in Presence of Dimethyl Sulphoxide on Rare Earth Metal Ions
... 1 Department of Chemistry, Christian College Kattakada, India- 695572 2 Former Professor, Department of Chemistry, University College (Rtd.), Trivandrum, India. Abstract: The present investigation is concerned with the ...
7
Recycling of Rare Earth Magnet Waste by Removing Rare Earth Oxide with Molten Fluoride
... of rare earth magnet scrap is required for improving resource ...of rare earth oxide from off-speci fi cation magnet alloy scrap was investigated by remelting the scrap together with fl uoride fl ...
8
Electropolishing the rare earth metals
... the rare-earth metals Abstract This paper describes a method whereby the rare-earth metals can be consistently electropolished and chemically ...
18
Preparation of rare earth metals
... of rare earth metals Abstract The production of over 400 grams of pure gadolinium metal by reduction of the anhydrous chloride by calcium in tantalum vessels is described; yields were over ...
31
Rare Earth Elements Profile
... A relatively newly described class of REE deposits are residual deposits of REE-bearing clays, termed ion- adsorption clays in the majority of the literature or alternatively ‘weathered crust elution-deposited ...
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Synthesis and reactivity of rare earth and alkaline earth metal complexes
... The decomposition of the cationic complex provides (Me 2 Si–Ndipp) 2 and a rare earth adduct. Further, this elimination reaction follows a second order rate law. Introduction A metal complex which contains ...
165