|  |   |       e
 
 
 
  
 
 


" .."
7
1. - \mathrm {HoFe}_{1 - x}\mathrm {Mn}_x\mathrm {O}_3
2. La1.4Sr1.6(Mn0.9Co0.1)2O7
3. Ba0.6 K0.4 BiO3.
4. ,
5. , R(H) BaPb0.75 Bi0.25 O3.
6. .
7. , , YBCO + CuO