Holmlund

• Cr-Fe-La-O
• Fe-La-O
• Ba-Cl-Cu-O
• Cl-Cu-O-Sr
• Cr-La-O
• phonons
• optical properties
• Raman spectra
• wavenumber of optical phonon
• magnetic properties
• transitional
• chalcogen
• antiferromagnetic
• oxide
• nonmetal
• orthorhombic
• tetragonal