Chalcogen, Intermediate valence, Transitional, Cu-Ir

• Cu-Ir-S
• Cu-Fe-Ir-S
• Cu-Ir-S-Zn
• Cd-Cu-Ir-S
• Cu-Gd-Ir-O-Sr
• magnetic properties
• electronic and electrical properties
• conductivity or resistivity
• magnetic susceptibility
• phase transitions
• intermediate valence
• transitional
• chalcogen
• spinel
• sulfide
• cubic
• tetragonal
• triclinic