Magnetic phases of one-dimensional lattices with 2 to 4 fermions per site
arXiv:0803.2857 · doi:10.1088/1367-2630/10/6/063013
Abstract
We study the spectral and magnetic properties of one-dimensional lattices filled with 2 to 4 fermions (with spin 1/2) per lattice site. We use a generalized Hubbard model that takes account all interactions on a lattice site, and solve the many-particle problem by exact diagonalization. We find an intriguing magnetic phase diagram which includes ferromagnetism, spin-one Heisenberg antiferromagnetism, and orbital antiferromagnetism.
arXiv comment8 pages, 6 figures
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Cited by in corpus (5)
- Ground-state properties of the one-dimensional attractive Hubbard model with confinement: a comparative study
- 2kF-Friedel to 4kF-Wigner oscillations in one-dimensional Fermi gases under confinement
- Phase separation in optical lattices in a spin-dependent external potential
- Magnetism of quantum dot clusters: A Hubbard model study
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