Abstract
ABSTRACT The thermal red-shifts of R1-line for Cr3+-doped Bi2Al4O9 and Bi2Ga4O9 crystals are analyzed with a complete equation containing not only the dynamic factor (used previously) due to electron–phonon interaction, but also the static factor caused by lattice thermal expansion. From the analysis, the static parameters A (charactering the static factor), the more reasonable electron–phonon coupling parameters(charactering the dynamic factor) and hence the more accurate quadratic coupling constants w for the two crystals are gained. It is found that the static factors are about 17% and 9% of the dynamic factors for Bi2Al4O9: Cr3+ and Bi2Ga4O9: Cr3+ crystals, respectively. So, in the accurate and reasonable analysis of R1-line thermal shifts in the two crystals (or other spectral line thermal shifts in crystals), the static factor needs to be considered and the complete equation including both factors should be adopted.
Sign-in/Register to access full text options 
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.
