Chalcogen, Non-disordered, Structural transition

• Eu-O-Ti
• Fe-O
• Fe-Se-Te
• Bi-O-Sr-Ta
• Bi-Se-Te
• chalcogen
• non-disordered
• transitional
• oxide
• ternary
• monoclinic
• orthorhombic
• tetragonal
• cubic
• trigonal