# Various Charge-Ordered States in the Extended Hubbard Model with On-Site Attraction in the Zero-Bandwidth Limit

@article{Kapcia2017VariousCS, title={Various Charge-Ordered States in the Extended Hubbard Model with On-Site Attraction in the Zero-Bandwidth Limit}, author={Konrad Jerzy Kapcia and Jan Barański and Stanisław Robaszkiewicz and Andrzej Ptok}, journal={Journal of Superconductivity and Novel Magnetism}, year={2017}, volume={30}, pages={109-115} }

The extended Hubbard model in the zero-bandwidth limit with intersite density–density interactions (nearest- and next-nearest-neighbor) is analyzed in the site-dependent mean-field approximation. In this paper, we investigate a case of on-site attraction U<0 for arbitrary values of intersite interactions as well as chemical potential (or electron density). We present ground state and finite temperature phase diagrams obtained in the four-sublattice assumption (e.g., 1D chain, 2D square, or 3D…

## 4 Citations

### Diversity of charge orderings in correlated systems.

- PhysicsPhysical review. E
- 2017

This work studies the zero-bandwidth limit of the extended Hubbard model, which can be considered as a simple effective model of charge ordered insulators and derives the exact ground state diagrams for different lattice dimensionalities.

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- PhysicsJournal of Magnetism and Magnetic Materials
- 2022

### Charge-Order on the Triangular Lattice: A Mean-Field Study for the Lattice S = 1/2 Fermionic Gas

- PhysicsNanomaterials
- 2021

The investigated hamiltonian has a form of the extended Hubbard model in the atomic limit (i.e., the zero-bandwidth limit) and the variational approach is used, which treats the onsite interaction term exactly and the intersite interactions within the mean-field approximation.

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- 2016

The Superstripes 2016 conference, held on June 23–29, 2016, in the island of Ischia in Italy celebrated the 20th anniversary of this series of conferences. For 20 years, structural, electronic, and…

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