An Experimental E.P.R. Study of Cr3+ Ions in Alf3 Amorphous at X–Band Frequency and Versus Temperature

H. Latelli
2015 Procedia - Social and Behavioral Sciences  
The main subject of this work is the study of structural properties of the amorphous AlF 3 doped with Cr 3+ , obtained by dehydratation of -AlF 3 ,3H 2 O, by electron paramagnetic resonance (EPR). The experimental studies upon powdered amorphous doped with various Cr 3+ concentrations have been achieved at X-band frequency and versus temperature. Evidence of two types of centers is obtained: ions pairs with antiferromagnetic coupling and isolated Cr 3+ ions.
doi:10.1016/j.sbspro.2015.06.315 fatcat:fzgyhv6ouzdx7acjhk6wzhjbz4