Valdes aguilar

• Eu-Mn-O-Y
• Mn-O-Tb
• Ce-Cu-Ge
• Ge-S-V
• Cd-Cr-O
• optical properties
• electronic and electrical properties
• optical conductivity
• permittivity (dielectric constant)
• magnetic properties
• transitional
• rare earth
• lanthanoid
• antiferromagnetic
• chalcogen
• orthorhombic
• tetragonal