Electronic and electrical properties, Er-Mn-O, Er-x polyhedra, Non-disordered

• Ba-Er-Mn-O
• Er-Fe-Mn-O
• permittivity (dielectric constant)
• real part of permittivity
• ferroelectric hysteresis
• ferroelectric transitions
• rare earth
• lanthanoid
• non-disordered
• chalcogen
• transitional
• hexagonal
• orthorhombic
• cubic