Refine your search:     
Report No.
 - 

Mass enhancement in an intermediate-valent regime of heavy-fermion systems

Kubo, Katsunori 

We study the mechanism of the mass enhancement in an intermediate valent regime of heavy fermion materials. We find that the crossovers between the Kondo, intermediate valent, and almost empty $$f$$-electron regimes become sharp by the Coulomb interaction between the conduction and $$f$$ electrons. In the intermediate valent regime, we find a substantial mass enhancement, which is not expected in previous theories. Our theory may be relevant to the observed non-monotonic variation of the effective mass under pressure in CeCu$$_2$$Si$$_2$$ and the mass enhancement in intermediate valent compounds $$alpha$$- and $$beta$$-YbAlB$$_4$$.

Accesses

:

- Accesses

InCites™

:

Percentile:36.01

Category:Physics, Multidisciplinary

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.