Zobrazeno 1 - 10
of 272
pro vyhledávání: '"Matlak, M."'
Publikováno v:
Acta Physica Polonica 112 (2007) p.537-547
We investigate two-site electronic correlations within generalized Hubbard model, which incorporates the conventional Hubbard model (parameters: $t$ (hopping between nearest neighbours), $U$ (Coulomb repulsion (attraction)) supplemented by the inters
Externí odkaz:
http://arxiv.org/abs/0711.0624
We find the eigenvalues $E_{\alpha} $ and eigenvectors $|E_{\alpha}>$ of the extended Hubbard dimer and we represent each part $E_{\alpha} |E_{\alpha}> < E_{\alpha} |$ of the dimer Hamiltonian $(\alpha =1,2,...,16)$in the second quantizations with th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511329
We performed three independent measurements for a polycristalline, ferromagnetic $GdCo_2$ sample in the temperature range from 300-440 K: chemical potential, current flow through the $GdCo_2-polymer-reference$ $% metal$ sandwich and the conventional
Externí odkaz:
http://arxiv.org/abs/cond-mat/0503432
Autor:
Matlak, M., Grabiec, B.
We consider systems which exhibit typical critical dependence of the specific heat: $\Delta c\varpropto (T_C-T)^{-\gamma}$ ($TT_C$) where $\gamma $,$\gamma ^{\prime}$ are critical exponents
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209470
Autor:
Grabiec, B., Matlak, M.
We investigate superconducting systems with the use of the phenomenological Landau's theory of second order phase transitions, including into the considerations the critical behaviour of the chemical potential. We derive in this way a variety of new
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209473
We formulate the Hubbard model for the simple cubic lattice in the representation of interacting dimers applying the exact solution of the dimer problem. By eliminating from the considerations unoccupied dimer energy levels in the large U limit (it i
Externí odkaz:
http://arxiv.org/abs/cond-mat/0204377
Publikováno v:
In Physica B: Physics of Condensed Matter 2007 387(1):122-129
Publikováno v:
In Journal of Alloys and Compounds 2006 423(1):47-51
Autor:
Matlak, M. *, Pietruszka, M.
Publikováno v:
In Physica B: Physics of Condensed Matter 2000 291(1):12-18
Autor:
Matlak, M.1 (AUTHOR) michal.matlak@us.edu.pl
Publikováno v:
Phase Transitions. Jan/Feb2012, Vol. 85 Issue 1/2, p179-182. 4p.