Distorted square anti-prism-b 8-vertex, Electronic energy gap, Hexagonal

• Mn-Te
• Ni-S
• Ag-F
• Be-Se
• Ba-Cl-Co-O
• values of electronic energy gap
• energy gap for direct transition
• thermal energy gap
• energy gap for indirect transition
• charge-transfer energy
• transitional
• disordered
• non-disordered
• ternary