Superposition model analysis of spin-Hamiltonian parameters forGd3+in rare-earth metal trichloride hexahydrates

1982 ◽  
Vol 26 (1) ◽  
pp. 55-59 ◽  
Author(s):  
Norman R. Lewis ◽  
Sushil K. Misra
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Model Analysis ◽  
Superposition Model ◽  
Spin Hamiltonian ◽  
Hamiltonian Parameters

Superposition Model Analysis of the Spin Hamiltonian Parameters of Two Gd3+ Doped Thorium Dichalcogenides

1982 ◽  
Vol 37 (6) ◽  
pp. 536-545
Author(s):  
G. Amoretti ◽  
C. Fava ◽  
V. Varacca
Keyword(s):  
Experimental Data ◽  
Single Crystal ◽  
Power Law ◽  
Model Analysis ◽  
Superposition Model ◽  
Spin Hamiltonian ◽  
Large Spread ◽  
Hamiltonian Parameters

Abstract The spin Hamiltonian parameters of Gd3+ in a single crystal of Thorium disulfide (ThS2) are analysed by means of the superposition model, in its most general form of a two exponents power law. In fact, the approximated one exponent power law is not suitable for this compound, where the ion-ligand distances show a quite large spread. The results of the analysis are then applied to the case of Gd3+ doped Thorium oxysulfide (ThOS), where the fitting of the experimental data is possible only assuming some distortion of the ligand cage.

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