Agostinho moreira

• Bi-Fe-La-O
• Eu-Mn-O
• Gd-Mn-O
• Bi-Fe-O
• Gd-Mn-O-Y
• structural properties
• electronic and electrical properties
• phonons
• optical properties
• permittivity (dielectric constant)
• chalcogen
• transitional
• lanthanoid
• rare earth
• disordered
• orthorhombic
• trigonal