Chalcogen, Delafossite, Ferroelectric, Multiferroic, Transitional

• Cu-Fe-O
• Al-Cu-Fe-O
• Cu-Fe-Ni-O
• Cu-O
• Fe-O
• magnetic properties
• magnetic transitions
• electronic and electrical properties
• phase transitions
• structural transitions
• delafossite
• ferroelectric
• antiferromagnetic
• chalcogen
• multiferroic
• trigonal
• monoclinic
• cubic