15-vertex frank-kasper, Electronic energy gap

• H-Y
• Ca-Sb
• Cu-S
• P-Pd
• K-Tl
• values of electronic energy gap
• thermal energy gap
• energy gap for indirect transition
• energy gap for direct transition
• exciton energy
• non-disordered
• transitional
• intermetallic
• ternary
• orthorhombic
• tetragonal
• hexagonal
• monoclinic
• cubic