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    STUDIA PHYSICA - Issue no. SPECIAL%20ISSUE / 2001  
         
  Article:   MAGNETIC AND STRUCTURAL PROPERTIES OF SOME GLASSES CONTAINING RARE EARTH IONS WITH APPLICATIONS IN TELECOMMUNICATIONS.

Authors:  EUGEN CULEA, LIDIA GOG.
 
       
         
  Abstract:  The xR2O3(1-x)[(1-y)Na2B4O7.yMO] vitreous system with R=Nd, Gd, Dy and Ho, MO= Al2O3 or PbO, y=0 or 0.05 and x = 0.01÷0.25 were prepared and studied magnetic susceptibility and density measurements. Magnetic susceptibility data indicate a Curie-Weiss type magnetic behaviour of the samples. Density data suggest that the rare earth ions play a network modifier role in the studied glass matrices. Al2O3 shows an anticlustering effect in the case of glasses containing holmium ions.  
         
     
         
         
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