S. Vonsovsky and the dawn of the theory of strongly correlated systems

TL;DR

This paper reviews the scientific contributions of S. V. Vonsovsky, focusing on his foundational work in the theory of electronic properties and magnetism in strongly correlated systems, highlighting historical development of key models.

Contribution

It provides a comprehensive overview of Vonsovsky's pioneering models and their significance in the development of strongly correlated electron systems theory.

Findings

Historical development of the many-electron polar model

Introduction of the $s-d(f)$ exchange models

Vonsovsky's influence on the theory of strongly correlated systems

Abstract

A survey of scientific and social activity of S. V. Vonsovsky is presented. His fundamental works on the theory of electronic properties and magnetism of transition and rare-earth metals and their compounds are reviewed. The historical development of the many-electron polar (preceding the famous Hubbard model) and $s-d(f)$ exchange (''Vonsovsky-Zener'', ''Kondo lattice'') models is considered.