Disordered, Transitional, Kennedy, Optical properties

• Ba-Nb-O-Pr-Sn
• Ba-Nb-O-Sn-Tb
• C-Cu-N
• Ag-C-N
• Ba-Nb-O-Pr
• optical spectra
• X-ray absorption near-edge spectra
• phonons
• wavenumber of optical phonon
• vibrational spectra
• transitional
• disordered
• chalcogen
• oxide
• alkaline
• orthorhombic
• cubic
• tetragonal
• monoclinic
• trigonal