34 citations · 53 across the 4 of their papers we have counts for
4 papers
Magnetic Order-Disorder Transitions on a 1/3 - Depleted Square Lattice
H. -M. Guo, T. Mendes-Santos, W. E. Pickett +1
Quantum Monte Carlo simulations are used to study the magnetic and transport properties of the Hubbard Model, and its strong coupling Heisenberg limit, on a one-third depleted squa…
Ferromagnetism beyond Lieb's theorem
Natanael C. Costa, Tiago Mendes-Santos, Thereza Paiva +2
The noninteracting electronic structures of tight binding models on bipartite lattices with unequal numbers of sites in the two sublattices have a number of unique features, includ…
Impurities near an Antiferromagnetic-Singlet Quantum Critical Point
T. Mendes, N. Costa, G. Batrouni +4
Heavy fermion systems, and other strongly correlated electron materials, often exhibit a competition between antiferromagnetic (AF) and singlet ground states. Using exact Quantum M…
Size and shape of Mott regions for fermionic atoms in a two-dimensional optical lattice
Tiago Mendes-Santos, Thereza Paiva, Raimundo R. dos Santos
We investigate the harmonic-trap control of size and shape of Mott regions in the Fermi Hubbard model on a square optical lattice. The use of Lanczos diagonalization on clusters wi…