scholarly journals Effective point-charge analysis of crystal fields: Application to rare-earth pyrochlores and tripod kagome magnets R3Mg2Sb3O14

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Zhiling Dun ◽  
Xiaojian Bai ◽  
Matthew B. Stone ◽  
Haidong Zhou ◽  
Martin Mourigal
Keyword(s):  
Rare Earth ◽  
Point Charge ◽  
Crystal Fields ◽  
Charge Analysis

Crystal Fields and the Effective-Point-Charge Model in the Rare-Earth Pnictides

1973 ◽  
Vol 8 (12) ◽  
pp. 5345-5347 ◽  
Author(s):  
R. J. Birgeneau ◽  
E. Bucher ◽  
J. P. Maita ◽  
L. Passell ◽  
K. C. Turberfield
Keyword(s):  
Rare Earth ◽  
Point Charge ◽  
Point Charge Model ◽  
Crystal Fields ◽  
Charge Model ◽  
The Rare Earth

Conduction Electron Contributions to the Crystalline Electric Fields in Transition Metals

1974 ◽  
Vol 52 (11) ◽  
pp. 985-988 ◽  
Author(s):  
A. Ludwig ◽  
R. A. B. Devine
Keyword(s):  
Rare Earth ◽  
Transition Metals ◽  
Noble Metal ◽  
Electric Fields ◽  
Conduction Electron ◽  
Point Charge ◽  
Rare Earth Ions ◽  
Negative Point ◽  
Tentative Explanation ◽  
Crystalline Electric Fields

We discuss the origin of the crystalline electric fields for rare earth ions in transition and noble metal hosts, in terms of the band character of the host material and of localization and delocalization of 5d electrons on the rare earth ions. A tentative explanation is given for the almost pure negative point charge character found in Pd and Pt.

scholarly journals Lattice Location of Rare Earth Ions in Semiconductors: Interpretation and Limitations of Using g Values

2005 ◽  
Vol 866 ◽  
Author(s):  
David Carey
Keyword(s):  
Rare Earth ◽  
Crystal Field ◽  
Field Potential ◽  
Rare Earth Ions ◽  
Lattice Location ◽  
Paramagnetic Resonance ◽  
Cubic Symmetry ◽  
Crystal Fields ◽  
Valid Comparison ◽  
G Value

AbstractThe g values of rare earth ions obtained from either paramagnetic resonance or Zeeman measurements are often used to interpret the location and/or environment surrounding rare earth ions. In the case of centres with cubic symmetry the g value can be used to distinguish between substitutional and interstitial sites. For centres with less than cubic symmetry the average g value, taken as 1/3 trace of the g tensor, is often used as an indication of the lattice location and/or a measure of the strength of the local crystal field. This approach is widely used but is based on the assumption that the non-cubic terms in the total crystal field potential are small compared with the cubic crystal field. In this paper we have explored this assumption by calculating the principal g values in axial crystal fields for the Er3+ ion. We examine the limits over which the average g value approach is valid. Comparison is made with published results.

Spectra of Rare-Earth Ions in the Crystal Fields of Double Tungstates and Molybdates

1982 ◽  
Vol 110 (2) ◽  
pp. 417-422 ◽  
Author(s):  
B. Z. Malkin ◽  
A. A. Kaminskii ◽  
N. R. Agamalyan ◽  
L. A. Bumagina ◽  
T. I. Butaeva
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Crystal Fields ◽  
Double Tungstates
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