Magnetic and electric hyperfine interactions in the rare-earth indium compoundsR2Instudied byCd111perturbed angular correlations

2005 ◽  
Vol 71 (9) ◽  
Author(s):  
M. Forker ◽  
R. Müßeler ◽  
S. C. Bedi ◽  
M. Olzon-Dionysio ◽  
S. Dionysio de Souza
Keyword(s):  
Rare Earth ◽  
Hyperfine Interactions ◽  
Angular Correlations ◽  
The Rare Earth

Magnetic hyperfine interactions on Cd sites of the rare-earth cadmium compoundsRCd(R=Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, and Er)

2016 ◽  
Vol 94 (6) ◽  
Author(s):  
F. H. M. Cavalcante ◽  
O. F. L. S. Leite Neto ◽  
H. Saitovitch ◽  
J. T. P. D. Cavalcante ◽  
A. W. Carbonari ◽  
...  
Keyword(s):  
Rare Earth ◽  
Hyperfine Interactions ◽  
Magnetic Hyperfine ◽  
The Rare Earth

Electron nuclear double resonance in calcium fluoride containing Yb 3+ and Ce 3+ in tetragonal sites

1969 ◽  
Vol 308 (1494) ◽  
pp. 403-431 ◽  
Keyword(s):  
Rare Earth ◽  
Calcium Fluoride ◽  
Hyperfine Interactions ◽  
Double Resonance ◽  
Covalent Bonding ◽  
Rare Earth Ion ◽  
Electron Nuclear Double Resonance ◽  
Bonding Theory ◽  
A Charge ◽  
The Rare Earth

This paper describes endor of 19 F nuclei in crystals of calcium fluoride containing the impurities Ce 3+ and Yb 3+ at low concentrations. The presence of a charge compensating interstitial F - ion (which reduces the symmetry of the rare-earth site to tetragonal) has been confirmed by the observation of endor lines from its nucleus. Each rare-earth ion has eight nearest neighbour (n. n.) F - ions which are separated into two inequivalent sets of four by the presence of the interstitial F - ion. The hyperfine parameters for each of these sets and for the interstitial have been measured. Formulae have been deduced for the contributions to these parameters from covalent bonding with the 4 f electrons, but for n. n. the formulae are too complicated for precise fitting with the experimental parameters, and for the interstitial the simple covalent bonding theory gives the wrong predictions. The most likely cause of the discrepancy is core polarization of the rare-earth ion which allows core electrons to take part in the covalent bonding. The hyperfine interactions with next nearest neighbours (n. n. n.) have also been measured. These have almost pure dipolar form so that it is possible to use them to map out the distortion of the lattice due to the interstitial F - ion.

Flame spectra of the rare-earth elements*

1962 ◽  
Vol 18 (4) ◽  
pp. 1127-1153
Author(s):  
V FASSEL ◽  
R CURRY ◽  
R KNISELEY
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The Rare Earth

Physico-chemical properties of the rare-earth metals, scandium, and yttrium

1963 ◽  
Vol 79 (2) ◽  
pp. 263-293 ◽  
Author(s):  
E.M. Savitskii ◽  
V.F. Terekhova ◽  
O.P. Naumkin
Keyword(s):  
Rare Earth ◽  
Rare Earth Metals ◽  
Chemical Properties ◽  
Physico Chemical ◽  
The Rare Earth
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