H-Y, H-x polyhedra, Metal, Trigonal

• Ce-H-Ni-Y
• Fe-H-Y
• H-La-Ni-Y
• H-Mn-Y
• electronic and electrical properties
• optical properties
• phonons
• thermal and thermodynamic properties
• magnetic properties
• transitional
• rare earth
• metal
• non-disordered
• hydride