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20032015
most citedA new code for automatic determination of equivalent widths: Automatic Routine for line Equivalent widths in stellar Spectra (ARES)

328 citations

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cond-mat.str-el2012★ 29 cited

Change of an insulator's topological properties by a Hubbard interaction

Miguel A. N. Araújo, Eduardo V. Castro, Pedro D. Sacramento

We introduce two dimensional fermionic band models with two orbitals per lattice site, or one spinful orbital, and which have a non-zero topological Chern number that can be change…

cond-mat.str-el2005★ 10 cited

Weak ferromagnetism and spiral spin structures in honeycomb Hubbard planes

M A N Araujo, N M R Peres

Within the Hartree Fock- RPA analysis, we derive the spin wave spectrum for the weak ferromagnetic phase of the Hubbard model on the honeycomb lattice. Assuming a uniform magnetiza…