Ferromagnetism in the Highly-Correlated Hubbard Model

Abstract

The Hubbard model with strong correlations is treated in the many-electron representation of Hubbard's operators. The regions of stability of saturated and non-saturated ferromagnetism in the n-U plane for the square and simple cubic lattices are calculated. The role of the bare density of states singularities for the magnetic phase diagram is discussed. A comparison with the results of previous works is performed.

Report on IV Euro-Asian Symposium "Trends in MAGnetism" EASTMAG-2010, Ekaterinburg; 4 pages, pdf

References in corpus (2)

• Half-metallic ferromagnets: From band structure to many-body effects
• Incommensurate magnetic order and phase separation in the two-dimensional Hubbard model with nearest and next-nearest neighbor hopping