Abstract
Tunneling rates for heavy-impurity interstitials in fcc metals are calculated. The full interstitial---host-lattice coupling is taken into account in the dynamics as well as in the lattice relaxation. It is shown that resonant modes play a decisive role in tunneling. The results of this full dynamical study are compared to simple one-dimensional models, from which it appears that the one-dimensional approximation can be used to extrapolate to different values of mass, jump distance, and classical activation energy. The method can be extended to study the finite-temperature behavior, and we indicate how this can be done.
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.
