Validity of the Anderson and Hubbard models for the description of metallic Ce and cerium heavy fermion compounds

S. V. Streltsov, A. O. Shorikov, V. I. Anisimov

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The importance of the inclusion of inter-site f-f hybridization in electron structure calculations for metallic Ce and cerium heavy fermion compounds was studied. We demonstrate that for heavy-fermion systems such as cerium compound CeCu2Si2f-f hybridization can be neglected and Anderson model application is well justified. On another hand for cerium metal f-f hybridization is strong enough to provide the contribution to hybridization function comparable to hybridization between 4f and itinerant electrons. We argue that in the case of Ce only the most general Hamiltonian combining the Hubbard and Anderson models should be used.

Original languageEnglish
Pages (from-to)543-546
Number of pages4
JournalJETP Letters
Volume92
Issue number8
DOIs
Publication statusPublished - 2010
Externally publishedYes

Fingerprint

Dive into the research topics of 'Validity of the Anderson and Hubbard models for the description of metallic Ce and cerium heavy fermion compounds'. Together they form a unique fingerprint.

Cite this