Abstract
We have performed calculations of Fermi surfaces for cubic Laves-phase heavy fermion compounds CeCo 2 , CeRh 2 and CeRu 2 , and enhanced electronic specific-heat coefficients γ ehs (i.e., mass enhancement factor), in which many-body effects are taken into account. The calculated Fermi surfaces of CeCo 2 and CeRu 2 are in good agreement with the dHvA measurements. On the other hand, the results for CeRh 2 hardly show satisfactory explanations for the measurements. Then, we have calculated enhancement factors \(\tilde\gamma\) for density of states of f -electrons using a method of perturbation expansion with respect to electron-electron interactions based on Fermi liquid theory. The values of γ ehs calculated by using \(\tilde\gamma\) reproduce well the experimental values for CeCo 2 and CeRu 2 .
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.
