ISSN:
1434-6036
Keywords:
PACS. 71.10.Fd Lattice fermion models (Hubbard model, etc.) - 71.27.+a Strongly correlated electron systems; heavy fermions - 71.28.+d Narrow-band systems; intermediate-valence solids
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract. The Kondo divergences owing to interaction of current carriers with local moments in highly correlated electron systems are considered within the Hubbard and s-d exchange models with infinitely strong on-site interaction, the many-electron Hubbard representation being used. The picture of density of states containing a peak at the Fermi level is obtained. Various forms of the self-consistent approximation are used. The problem of the violation of analytical properties of the Green's function is discussed. Smearing of the “Kondo” peak owing to spin dynamics and finite temperatures is investigated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510070204
