Finite concentrations of localized moments in metals

✍ Scribed by J.C Stoddart

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 665 KB
• Volume: 95
• Category: Article
• ISSN: 0003-4916
• DOI: 10.1016/0003-4916(75)90057-3

✦ Synopsis

In earlier work, density functional methods have been used to study the magnetism of pure metals and the problem of local moment formation on a single magnetic impurity. In the present paper these methods are reviewed and applied to the case of an arbitrary concentration of impurity atoms. It is shown that the Hartree-Fock treatment of the system and a local environment effect can be reproduced very easily in the density functional framework. More importantly, the present formulation allows one some insight into the effects of correlation. Although correlation density functionals are difficult to obtain, it is shown that a class of models of the many impurity system can be solved exactly.