Abstract
The infrared reflection and Raman spectra of spinel type oxides MCr 2O 4 ( M = Mg, Mn, Fe, Co, Ni, Cu, Zn), MFe 2O 4 ( M = Ni, Cu), and Mn 3O 4 (single crystals, pressed pellets) including Kramers-Kronig analyses and oscillator-fit calculations are presented. The spectra are discussed with respect to the true space group and ionicities of these compounds as well as the vibrational modes, phonon energies, and resonance Raman effects compared with the respective spectra of spinel type halides, sulfides, and selenides. Because of the relatively high porosity of the pellets obtainable the true frequencies of the IR allowed phonons can only be determined from single crystal spectra.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.