Hexagonal, Ho-Mn-O, Lanthanoid, Transitional, Monocapped trigonal prism 7-vertex

• Er-Ho-Mn-O
• Fe-Ho-Mn-O
• magnetic properties
• thermal and thermodynamic properties
• magnetic transitions
• electronic and electrical properties
• temperature for magnetic transition
• lanthanoid
• chalcogen
• antiferromagnetic
• ferroelectric
• oxide