|  |   |       e
 
 
 
  
 
 


" .."
5
1. La0.7Sr0.3Mn1-xCoxO3
2. Pr0.5Sr0.5 Co1-x Mnx O3
3. Sr0.78 Y0.22 Co1-x Fex O3-γ
4. BiFeO3- AFe0.5Nb0.5O3 ( A = Ca, Sr, Ba, Pb)
5. TbBaCo2-xFexO5+γ