Chalcogen, Disordered, Oxide, Structural transition

• Ge-K-Na-Nb-O
• O-V
• Bi-O-Sr-Ta
• Ba-Nd-O-Ti
• Ba-Co-Fe-O-Sr
• oxide
• chalcogen
• disordered
• transitional
• conductor
• cubic
• tetragonal
• orthorhombic
• monoclinic
• trigonal