Ferromagnetism in the Highly-Correlated Hubbard Model

Valentin Yu. Irkhin; Alexander V. Zarubin

doi:10.4028/www.scientific.net/SSP.168-169.469

Paper Titles

Application of 3s X-Ray Photoelectron Spectra for Determination of Charge States and Magnetic Moments of 3d Ions in Oxides
p.453

Inhomogeneous Magnetic State above the Curie Temperature of the Doped Cobaltite La_1-XSr_xCoO₃
p.457

Spin Injection as a Source of the Metamagnetic Phase Transition
p.461

Phase Diagram of Spin States and Magnetic Interactions in Isotope Substituted (Pr,Eu)_0.7Ca_0.3CoO₃
p.465

Ferromagnetism in the Highly-Correlated Hubbard Model
p.469

Spin Polarons at High Temperatures in Undoped Lanthanum Manganites
p.473

Magnetic State of Y₃Fe_5-XSc_xO₁₂ Garnets
p.477

Structural, Magnetic and Electrical Properties of the Slightly Doped Lanthanum Manganites
p.481

Behavior of Clustered State above the Curie Temperature in La_0.78Ca_0.22MnO₃ Single Crystal
p.485

HomeSolid State PhenomenaSolid State Phenomena Vols. 168-169Ferromagnetism in the Highly-Correlated Hubbard...

Ferromagnetism in the Highly-Correlated Hubbard Model

Abstract:

The Hubbard model with strong correlations is treated in the many-electron representation of the 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 singularities of bare density of states for the magnetic phase diagram is discussed. A comparison with the results of previous works is performed.

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Solid State Phenomena (Volumes 168-169)

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469-472

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.168-169.469

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Online since:

December 2010

Authors:

Valentin Yu. Irkhin, Alexander V. Zarubin

Keywords:

Itinerant Ferromagnetism, Lattice Fermion Models (Hubbard Model, Etc.), Magnetic Phase Diagram, Narrow-Band Systems

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