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    STUDIA PHYSICA - Issue no. 2 / 2002  
         
  Article:   STRUCTURAL AND DIELECTRICAL PROPERTIES OF PB2MG1-XCOXWO6 SOLID SOLUTIONS.

Authors:  I. ARDELEAN, I. BARBUR, G. BORODI, A. VERES, R. VERES, V. TIMAR.
 
       
         
  Abstract:  X-ray diffraction and dielectric permitivity data performed on Pb2Mg1-xCoxWO6 solid solutions with 0  x  0.3 are reported. By partial cobalt substitution for magnesium the diffraction patterns are similar to that of Pb2MgWO6 compound with a small increase of lattice parameters, which is probable due to the difference in the ionic radii of Mg2+ and Co2+. Dielectric anomaly at Tc (38oC) related to the antiferroelectric transition in Pb2MgWO6 is affected by cobalt substitution for magnesium by Tc decreases.  
         
     
         
         
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