Chalcogen, Non-disordered, I12/a1

• La-Mn-O
• Ge-Ho-O
• Co-La-O
• Bi-O-V
• O-V
• electronic and electrical properties
• phase transitions
• structural transitions
• pressure for structural transition
• magnetic properties
• chalcogen
• non-disordered
• ternary
• transitional
• nonmetal
• monoclinic