Chalcogen, Conductor, Metal, Structural transitions

• Ba-O-Ti
• Fe-Te
• Ca-La-Mn-O
• S-Ta
• Fe-Se
• temperature for structural transition
• pressure for structural transition
• structural transition
• conductor
• metal
• chalcogen
• transitional
• disordered
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal