Conductor, Disordered, Semiconductor, Cu-Fe-O, Trigonal

• Cu-Fe-Ni-O
• Cu-Fe-Ge-O
• Bi-Cu-Fe-Nd-O
• Cu-Dy-Fe-O
• magnetic properties
• electronic and electrical properties
• structural properties
• phase transitions
• magnetization
• oxide
• chalcogen
• conductor
• disordered
• semiconductor