Chalcogen, Rare earth, Ho-O, Orthorhombic, Phase transitions

• Ho-Mn-O
• Ba-Cu-Ho-O
• Ba-Co-Ho-O
• Ca-Ho-Mn-O
• Ba-Fe-Ho-O
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• chalcogen
• lanthanoid
• rare earth
• transitional
• oxide