Abstract
We have investigated the temperature variations of the second-order elastic constants of ${\mathrm{CaF}}_{2}$ and ${\mathrm{SrF}}_{2}$ crystals by means of a three-body-interaction potential model which earlier has successfully described such variations exhibited by the other members of the fluorite family [Phys. Rev. B 39, 13493 (1989)]. Our results, obtained from the three-body-interaction potential model, have shown reasonably good agreement with their experimental neutron-scattering data. On the basis of these successful descriptions, we have concluded that three-body interactions and lattice anharmonicity play an important role in revealing the anomalous behavior and temperature variations of the elastic constants of fluorites.
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.
