2 papers
cond-mat.str-el2007
Electronic Correlations within Fermionic Lattice Models
M. Matlak, B. Grabiec, S. Krawiec
We investigate two-site electronic correlations within generalized Hubbard model, which incorporates the conventional Hubbard model (parameters: (hopping between nearest neighb…
cond-mat.stat-mech2002
Critical phenomena and critical relations
M. Matlak, B. Grabiec
We consider systems which exhibit typical critical dependence of the specific heat: (); () where ,…