C, Chalcogen, Disordered, Debye or einstein temperature, Tetragonal

• Ba-C-Ca-Cu-O
• Ba-C-Cu-O-Sr
• Br-C-H-K-N-O-Pt
• Ba-C-Cu-O-Y
• Ba-C-Cu-In-O
• chalcogen
• disordered
• transitional
• multinary