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cond-mat.str-el2010
Estimating the Hubbard repulsion sufficient for the onset of nearly-flat-band ferromagnetism
Lukasz Andrzejewski, Janusz Jedrzejewski
We consider nearly-flat-band Hubbard models of a ferromagnet, that is the models that are weak perturbations of those flat-band Hubbard models whose ground state is ferromagnetic f…
cond-mat.str-el2010★ 1 cited
How to recognize a nearly-flat-band ferromagnet by means of thermodynamic measurements?
Volodymyr Derzhko, Janusz Jedrzejewski
We make an attempt at unveiling the thermodynamic "signature" of a specific class of electronic systems, the so called nearly-flat-band paramagnets and ferromagnets that can theore…