Ferromagnetic correlation in a Hubbard tetrahedron
- 27 November 1980
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 13 (33) , L979-L983
- https://doi.org/10.1088/0022-3719/13/33/004
Abstract
Exact numerical solutions of the magnetic susceptibility, the specific heat, the spin and the charge correlation functions are obtained for a Hubbard tetrahedron which contains a high degree of frustration. Complete ferromagnetism shows up in the ground state when the system is more than half-filled, in agreement with Nagaoka's exact solution (1966) for the bulk FCC lattice.Keywords
This publication has 7 references indexed in Scilit:
- Ground state of Hubbard model on 2 × 2 × 2 latticeSolid State Communications, 1979
- Zero-Temperature Magnetic Properties of the Hubbard Model with Infinite Coulomb RepulsionPhysical Review B, 1973
- Ferromagnetismus in schmalen EnergiebändernThe European Physical Journal A, 1973
- Ferromagnetism in a Narrow, Almost Half-FilledBandPhysical Review B, 1966
- Electron correlations in narrow energy bandsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1963
- Models of Exchange Coupling in Ferromagnetic MediaReviews of Modern Physics, 1953
- The Ferromagnetism of NickelPhysical Review B, 1936