Results 251 to 260 of about 24,741 (304)

Rare-earth metal hydroxylamide complexes

Dalton Transactions, 2008
The rare-earth metal hydroxylamide compound Y[N(SiHMe2)2]2[ONBn2][THF] (1) was prepared by the silylamide elimination pathway from the reaction of N,N-dibenzylhydroxylamine, Bn2NOH (Bn = CH2C6H5), with Y[N(SiHMe2)2]3[THF]2 and was characterised by multinuclear NMR spectroscopy and elemental analysis.
Venugopal, Ajay, Hepp, Alexander, Pape, Tania, Mix, Andreas, Mitzel, Norbert W.   +4 more
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Quadrupole resonances in the rare-earth metals

Physical Review A, 1989
Calculations that employ a relativistic time-dependent local-density approximation to atomic absorption are used to examine a recent claim to the observation of giant quadrupolar resonances in the electron-energy-loss spectrum of Ce metal near the 4p edge. We confirm the existence of 4p\ensuremath{\rightarrow}4f resonances in this energy range but find
, Liberman, , Zangwill
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Ferromagnetism and antiferromagnetism of rare-earth metals

Uspekhi Fizicheskih Nauk, 1964
CONTENTS 1. Magnetic Properties of Rare-earth Ferromagnets 179 2. Neutron-Diffraction Studies of the Magnetic Structure of Rare-earth Ferromagnets 183 3. Theory of the Helicoidal Magnetic Structure 184 4. Nature of Magnetic Phase Transitions in Rare-earth Ferromagnets 190 5. Antiferromagnetism of Metals of the Cerium Subgroup 191 6.
Konstantin P Belov, R Z Levitin, S A Nikitin   +2 more
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Alkynyl Compounds of the Rare‐earth Metals

Zeitschrift für anorganische und allgemeine Chemie, 2014
AbstractConversion of the rare‐earth tetramethylaluminates [Ln(AlMe4)3] with phenylacetylene afforded the homoleptic alkynylaluminates [Ln{(μ‐C≡CPh)2AlMe2}3] [Ln = Ce (1), Er(2)]. The reaction of five equivalents of phenylacetylene with the yttrium aluminate [Y(AlMe4)3] afforded [Y{(μ‐C≡CPh)AlMe3}{(μ‐C≡CPh)2AlMe2}2] (3).
Nieland, Anja, Lamm, Jan-Hendrik, Mix, Andreas, Neumann, Beate, Stammler, Hans-Georg, Mitzel, Norbert W.   +5 more
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Thermochemistry and reactivity of rare earth metals

Physical Chemistry Chemical Physics, 1999
Reactivity of the rare earth metals towards the different elements is described. Comments are mainly made on the thermodynamic data relevant to the formation of the binary compounds and to their trends. The different behaviour of the trivalent rare earths and of europium and ytterbium is underlined.
BORZONE, GABRIELLA, RAGGIO, RICCARDO, FERRO, RICCARDO   +2 more
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Magnetism in Rare-Earth Metals and Rare-Earth Intermetallic Compounds

Physica Scripta, 1991
Some of our recent local spin density electronic structure calculations for a number of ferromagnetic rare-earth systems are reviewed. A simplified model of the level densities for rare-earth (R) transition metal (M) intermetallic compounds, RmMn, is used to describe in a simple way the main features of their basic electronic structure.
Börje Johansson, Lars Nordström, Olle Eriksson, M S S Brooks   +3 more
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Rare Earth Metals

1990
Abstract Rare earth metals belong to Group IIIA of the periodic table that includes scandium, yttrium, and the lanthanide elements which are lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium. This article classifies the rare earth
K.A. Gschneidner, B.J. Beaudry, J. Capellen   +2 more
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Rare-earth hydrides and rare-earth oxides in and from thin films of rare-earth metals

Journal of the Less Common Metals, 1974
Abstract Thin films of rare-earth metals always getter hydrogen very easily under ordinary conditions of preparation. It is shown from X-ray and electron diffraction experiments that the f.c.c. hydrides appear as single-crystal inclusions especially in the case of the yttric series (except for ytterbium).
M. Gasgnier, J. Ghys, G. Schiffmacher, Ch.Henry La Blanchetais, P.E. Caro, C.Boulesteix Ch. Loier, B. Pardo   +6 more
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The rare-earth metals

Contemporary Physics, 1970
Summary A brief survey is given of the physical properties of the rare earth metals. In doing this their characteristic structural and magnetic behaviour is described first and this is then followed by an examination of the ways in which these features affect the other properties.
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Microwave Absorption in Rare-Earth Metals

Journal of Applied Physics, 1965
Microwave absorption phenomena have been investigated in single crystals of the rare-earth metals Tb, Dy, Ho, and Er, at frequencies of 9.44 and 35.3 Gc/sec over the temperature range 10° to 290°K. Microwave absorption occurs at the critical field transitions for the antiferromagnetic phase.
D.M.S. Bagguley, J. Liesegang
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