On the use of a single site approximation to describe correlation in pure metals

TL;DR

This paper explores how a single site approximation can effectively model electron correlation effects in pure transition metals, shedding light on their magnetic properties.

Contribution

It introduces a model using a hybridized band approach with Coulomb correlation to analyze ferromagnetism in pure metals.

Findings

Ferromagnetism depends on specific correlation and hybridization parameters.

The single site approximation captures key magnetic behaviors.

Electron correlation plays a crucial role in magnetic properties.

Abstract

The magnetic properties of pure transition-like metals are discussed within the single site approximation, to take into account the electron correlation. The metal is described by two hybridized bands one of which includes the Coulomb correlation. Our results indicate that ferromagnetism follows from adequate values of the correlation and hybridization.