Abstract
The influence of lattice vibrations and charge fluctuations on the lifetime of crystal-field states is discussed in the context of experimental studies of lanthanide ions in ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}d}.$ Apart from S-state ions, lattice vibrations always provide a channel for relaxation and, through the agency of an intermediate-energy crystal-field state, a significant contribution to the lifetime. In consequence, it is an unsafe practice to interpret the measured lifetime of lanthanide ion crystal-field states in terms of scattering by charge carriers ignoring a lattice contribution. Certainly, it is a bad practice when the host material is a poor metal, like ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}d},$ and the density of charge carriers is small.
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.
