Shielding for the crystalline electric field and for the nuclear quadrupole moments in rare-earth ions

1964 ◽  
Vol 84 (2) ◽  
pp. 297-307 ◽  
Author(s):  
M N Ghatikar ◽  
A K Raychaudhuri ◽  
D K Ray
Keyword(s):  
Rare Earth ◽  
Electric Field ◽  
Rare Earth Ions ◽  
Quadrupole Moments ◽  
Crystalline Electric Field ◽  
Nuclear Quadrupole ◽  
Nuclear Quadrupole Moments

Electronic shielding of the crystalline electric field in rare earth ions

1965 ◽  
Vol 86 (6) ◽  
pp. 1235-1238 ◽  
Author(s):  
M N Ghatikar ◽  
A K Raychaudhuri ◽  
D K Ray
Keyword(s):  
Rare Earth ◽  
Electric Field ◽  
Rare Earth Ions ◽  
Crystalline Electric Field

The magnetic and spectroscopic properties of certain rare-earth double nitrates

1955 ◽  
Vol 232 (1191) ◽  
pp. 458-474 ◽  
Keyword(s):  
Rare Earth ◽  
Electric Field ◽  
Spectroscopic Properties ◽  
Rare Earth Ions ◽  
Rare Earth Ion ◽  
Crystalline Electric Field ◽  
Paramagnetic Resonance ◽  
Systematic Fashion ◽  
Resonance Data ◽  
Rare Earth Series

The theory that has been developed for rare-earth ions in crystals is here applied to the double nitrates. The paramagnetic resonance data and certain spectroscopic properties of the different rare-earth double nitrates, depending as they do on the crystalline electric field at a rare-earth ion, are related to the six parameters through which the field is defined. It is found that most of the experimental results can be fitted to values of the parameters that vary in a systematic fashion along the rare-earth series.

Precision Muonic-Atom Measurements of Nuclear Quadrupole Moments and the Sternheimer Effect in Rare-Earth Atoms

1983 ◽  
Vol 51 (18) ◽  
pp. 1633-1635 ◽  
Author(s):  
Y. Tanaka ◽  
R. M. Steffen ◽  
E. B. Shera ◽  
W. Reuter ◽  
M. V. Hoehn ◽  
...  
Keyword(s):  
Rare Earth ◽  
Muonic Atom ◽  
Quadrupole Moments ◽  
Nuclear Quadrupole ◽  
Nuclear Quadrupole Moments

The nuclear quadrupole moment of 69Ga and 115In

2009 ◽  
Vol 87 (7) ◽  
pp. 802-805 ◽  
Author(s):  
Hana Yakobi ◽  
Ephraim Eliav ◽  
Uzi Kaldor
Keyword(s):  
Electric Field ◽  
Fock Space ◽  
Coupling Constants ◽  
Basis Sets ◽  
Coupled Cluster ◽  
Quadrupole Moments ◽  
Electric Field Gradients ◽  
Field Gradients ◽  
Nuclear Quadrupole ◽  
Nuclear Quadrupole Moments

Electric field gradients at the nuclei of gallim and indium are determined by finite field calculations of the atomic energies as functions of the nuclear quadrupole moments. The four-component Dirac–Coulomb–Gaunt Hamiltonian serves as framework, and all electrons are correlated by Fock-space coupled cluster with single and double excitations or by single reference coupled cluster with approximate triples. Large, converged basis sets (e.g., 28s24p20d13f5g4h for In) and virtual spaces are used. Together with experimental nuclear quadrupole coupling constants, known with high precision, the calculated electric field gradients yield the nuclear quadrupole moments. For 69Ga, we get Q = 174(3) mb, in agreement with the earlier 171(2) mb obtained from molecular calculations. The 115In moment is Q = 772(5) mb, considerably lower than the previously accepted 810 mb, and in good agreement with the recent molecular value of 770(8) mb.

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