Abstract
The magnetic susceptibility, χ, of CeCo 2 compound has been measured under pressure up to 2 kbar at T=78 and 300 K , and a pronounced pressure effect, d ln χ/ dP≃−5 Mbar −1 , is revealed. In order to analyze the experimental magnetovolume effect, d ln χ/ d ln V , the volume-dependent electronic structure of CeCo 2 has been calculated ab initio by employing a relativistic full-potential LMTO method. The calculations have brought out strong hybridization of the itinerant 4f (Ce) and 3d (Co) states, which leads to a filling of the peculiar bonding band. It is demonstrated that the magnetic properties of CeCo 2 are consistent with itinerant behavior of the 4f electrons of cerium. The large volume derivative of the effective electron–electron interaction parameter, d ln I/ d ln V≃−1.7 , implies a predominant role of the short-range correlations, in accordance with the Hubbard model.
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.
