scholarly journals ANALYSIS ON CRYSTAL FIELD PARAMETER OF RARE EARTH IONS IN RX COMPOUNDS

1986 ◽  
Vol 35 (9) ◽  
pp. 1142
Author(s):  
Yang Gui-ling ◽  
Xu You ◽  
Lu De-ling ◽  
Zhai Hong-ru
Keyword(s):  
Rare Earth ◽  
Crystal Field ◽  
Crystal Field Parameter ◽  
Rare Earth Ions ◽  
Field Parameter

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.

Theoretical Study of Energy Levels Splitting of Praseodymium-Doped Trichloride

2013 ◽  
Vol 774-776 ◽  
pp. 992-995
Author(s):  
Mei Ling Duan ◽  
Jin Hong Li ◽  
Xiao Feng Yang
Keyword(s):  
Rare Earth ◽  
Crystal Field ◽  
Ionic Radius ◽  
Theoretical Study ◽  
Energy Levels ◽  
Rare Earth Ions ◽  
Energy Matrix ◽  
Irreducible Tensor ◽  
Crystal Field Parameters ◽  
Complete Energy Matrix

A 91×91 complete energy matrix of 4f2configuration ion Pr3+in triagonal crystal fieldC3hhas been constructed based upon the combination of Racahs irreducible tensor with Slaters wavefunctions. Thus, the Stark energy levels of Pr3+in trichlorides LaCl3have been calculated. The calculation result shows that the complete energy matrix method is effective to analyze the energy levels splitting of the doped entity by rare earth ions. We also know that the consideration to the sixth-order crystal field parameters is indispensable and the ionic radius of the replaced ion will play an important role in the energy levels splitting of the doped systems.

Crystal field analysis of rare-earth ions energy levels in GaN

2014 ◽  
Vol 37 ◽  
pp. 165-174 ◽  
Author(s):  
M. Stachowicz ◽  
A. Kozanecki ◽  
C.-G. Ma ◽  
M.G. Brik ◽  
J.Y. Lin ◽  
...  
Keyword(s):  
Rare Earth ◽  
Crystal Field ◽  
Energy Levels ◽  
Rare Earth Ions ◽  
Field Analysis
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