31 citations · 70 across the 4 of their papers we have counts for
5 papers
The M-center in 4H-SiC is a carbon self-interstitial
J. Coutinho, J. D. Gouveia, T. Makino +5
The list of semiconductor materials with spectroscopically fingerprinted self-interstitials is very short. The M-center in 4H-SiC, a bistable defect responsible for a family of ele…
Can we rely on hybrid-DFT energies of solid-state problems with local-DFT geometries?
J. D. Gouveia, J. Coutinho
Hybrid functionals often improve considerably the accuracy of density-functional calculations, in particular of quantities resulting from the band structure. In plane-wave (PW) cal…
Spiral ferrimagnetic phases in the two-dimensional Hubbard model
J. D. Gouveia, R. G. Dias
We address the possibility of spiral ferrimagnetic phases in the mean-field phase diagram of the two-dimensional (2D) Hubbard model. For intermediate values of the interaction …
Magnetic phase diagram of the Hubbard model in the Lieb lattice
J. D. Gouveia, R. G. Dias
We study the mean-field phase diagram of the repulsive Hubbard model in the Lieb lattice. Far from half-filling, the most stable phases are paramagnetism for low on-site interactio…
Origami rules for the construction of localized eigenstates of the Hubbard model in decorated lattices
R. G. Dias, J. D. Gouveia
We present a method of construction of exact localized many-body eigenstates of the Hubbard model in decorated lattices, both for and . These states are l…