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    STUDIA PHYSICA - Issue no. 2 / 2002  
         
  Article:   MAGNETIC SUSCEPTIBILITY INVESTIGATION OF IRON IONS IN 3B2O3KCL GLASS MATRIX.

Authors:  I. ARDELEAN, P. PĂŞCUŢĂ.
 
       
         
  Abstract:  Magnetic susceptibility measurements have been performed on xFe2O3(100-x)[3B2O3KCl] glasses with 05 mol % the iron ions experience negative magnetic superexchange interactions. From Curie constant values we have established that in these glasses both Fe3+ and Fe2+ ions are present. The molar fraction of these ions increase with Fe2O3 content. Valence states and distribution in glass matrix of iron ions determine the magnetic behaviour of the studied glasses.  
         
     
         
         
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