Ferromagnetism in Hubbard Models
- 18 December 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 75 (25) , 4678-4681
- https://doi.org/10.1103/physrevlett.75.4678
Abstract
We present the first rigorous examples of nonsingular Hubbard models which exhibit ferromagnetism at zero temperature. The models are defined in arbitrary dimensions, and are characterized by finite-range hoppings, dispersive bands, and finite on-site Coulomb interaction . The picture, which goes back to Heisenberg, that sufficiently large Coulomb interaction can revert Pauli paramagnetism into ferromagnetism has been confirmed in concrete examples.
Keywords
All Related Versions
This publication has 15 references indexed in Scilit:
- Ferromagnetism in Hubbard models: Low density routeJournal of Low Temperature Physics, 1995
- Ferromagnetism in the Hubbard model and Hund's rulePhysics Letters A, 1993
- Exact ground states for the Hubbard model on the Kagome latticeJournal of Physics A: General Physics, 1992
- Ferromagnetism in the Hubbard model on line graphs and further considerationsJournal of Physics A: General Physics, 1991
- Ferromagnetic ground states for the Hubbard model on line graphsJournal of Physics A: General Physics, 1991
- Two theorems on the Hubbard modelPhysical Review Letters, 1989
- The Theory of Magnetism IPublished by Springer Nature ,1981
- Ferromagnetism in a Narrow, Almost Half-FilledBandPhysical Review B, 1966
- Exchange in solid 3He and the Heisenberg HamiltonianProceedings of the Physical Society, 1965
- Zur Theorie des FerromagnetismusThe European Physical Journal A, 1928