Lanthanoid, Oxide, Rare earth, Transitional, Pressure for structural transition

• Bi-Eu-Fe-O
• Ba-Cu-La-O
• Gd-O-Zr
• Bi-F-La-O-S
• Ba-Ce-O-Zr
• rare earth
• oxide
• lanthanoid
• chalcogen
• transitional
• orthorhombic
• tetragonal
• monoclinic
• cubic
• trigonal