2000/07/31 by L. Didukh, Didukh, L.
Materials Science · Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/0007501
arxiv created 2000/07/31 · openalex publication_date 2000/07/31 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In the present work ferromagnetic ordering in the Hubbard model generalized by taking into account the inter-atomic exchange interaction and correlated hopping in partially filled narrow band is considered. Expressions for the magnetization and Curie temperature as functions of model parameters and band filling are obtained in the case of weak intra-atomic Coulomb interaction. Condition of ferromagnetic state realization is found. The obtained results indicate the important role of correlated hopping.