Negative thermal expansion, Ternary, Transitional, Tetragonal

• Ag-Ga-S
• Ag-Ga-Se
• Ag-Sb-Sm
• Cu-Fe-Nd
• Gd-Mo-O
• electronic and electrical properties
• thermal and thermodynamic properties
• optical properties
• structural properties
• mechanical properties
• transitional
• ternary
• negative thermal expansion
• non-disordered
• chalcogen