Chalcogen, Cuprite, Transitional

• Cu-O
• Cu-O-Y
• Cu-Fe-O
• Ba-Cu-O
• Cu-O-Pb
• phase transitions
• phase diagram
• electronic and electrical properties
• optical properties
• transitional
• cuprite
• chalcogen
• oxide
• binary
• cubic
• monoclinic
• trigonal
• orthorhombic
• tetragonal