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    STUDIA PHYSICA - Issue no. 1 / 2010  
         
  Article:   GADOLINIUM EFFECT ON THE MAGNETIC PROPERTIES OF HEAVY METAL GLASSES AND GLASS-CERAMICS.

Authors:  S. SIMON.
 
       
         
  Abstract:  

Heavy metal bismuthate glass and glass-ceramic samples with gadolinium oxide were obtained by quick undercooling of melts and later heat treatments. Magnetic susceptibility data suggest that beside homogeneously distributed Gd3+ ions, both in the glass and glass-ceramic samples, there are clustered Gd3+ ions experiencing antiferromagnetic interactions. In all cases the magnetic moments are smaller than the value corresponding to free Gd3+ ions and decrease with gadolinium content. The decrease is linear and the slope depends on the glass matrix composition.

 

Keywords: Glass; glass-ceramics; heavy metals; magnetic properties.

 

 
         
     
         
         
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