Fe-O, Optics, Orthorhombic, Rare earth

• Fe-La-O
• Ba-Cu-Fe-O-Y
• As-Fe-La-O
• Bi-Fe-La-O
• As-Fe-O-Sm
• phonons
• optical spectra
• wavenumber of optical phonon
• Raman spectra
• infrared spectra
• transitional
• chalcogen
• rare earth
• lanthanoid
• antiferromagnetic