Chalcogen, Transitional, La-Tm

• La-S-Tm
• La-O-Tm
• La-Se-Tm
• La-Mo-Na-O-Tm
• La-O-Ta-Tm
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• optical properties
• phase transitions
• transitional
• lanthanoid
• chalcogen
• rare earth
• cubic
• tetragonal
• monoclinic
• orthorhombic
• hexagonal