|  |   |       e
 
 
 
  
 
 


" .."
4
1. Ba- Ln0.70Ba0.30MnO3-\delta (Ln = Pr, Nd)
2. La1-xBixMnO3+\delta
3. Nd1-xCaxMnO3
4. La0.50D0.50MnO3-\gamma (D = Ca, Sr)