Elastic stiffness coefficient, La-x polyhedra

• Cu-La-O
• Cu-La-O-Sr
• Ga-La-O-Si
• La-Mn-O
• La-Ni
• transitional
• lanthanoid
• rare earth
• disordered
• chalcogen
• orthorhombic
• tetragonal
• cubic
• trigonal
• hexagonal