Abstract
Far infrared absorption spectra of calcium, cadmium, and barium fluorides doped with Co 2+, Mn 2+ and Ni 2+ at 1.4 K show several peaks (17–150 cm − 1). A sharp resonant band mode is observed for BaF 2:Mn 2+ at 22.8 cm − 1. The frequency increases to 30 cm − 1 when the temperature is raised to 60 K. This unusual frequency( 1) shift and also the increase in spectral width are explained in terms of scattering processes with Einstein oscillators of one frequency v E = 30 cm − 1. Such resonant band modes are specific to transition elements and have not been found for rare earth-doped alkaline earth halides.( 2)
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
