9 citations · 9 across the 1 of their papers we have counts for
2 papers
cond-mat.str-el2021★ 9 cited
Description of molecular nanomagnets by the multi-orbital Hubbard model with correlated hopping
Jacek Matysiak, Romuald Lemański
We present a microscopic description of molecular magnets by the multi-orbital Hubbard model, which includes the correlated hopping term, i.e. the dependence of electron hopping am…
cond-mat.str-el2018
Two-orbital Hubbard model vs spin Heisenberg model: studies on clusters
R. Lemański, J. Matysiak
We perform exact numeric calculations for the two-orbital Hubbard model on the four-site cluster. In the limit of large on-site coupling the model becomes equivalent to the spin $S…