Results 21 to 25 of about 427,781 (25)
Pair Formation in a t-J Model [PDF]
arXiv, 2008 We have investigated the formation of bound state of two electrons in different kind of lattices using a t-J-U model.
arxiv
On the thermodynamics of strongly correlated integrable electron systems [PDF]
arXiv, 1999 We reexamine the Yang-Yang-Takahashi method of deriving the thermodynamic Bethe ansatz equations which describe strongly correlated electron systems of fundamental physical interest, such as the Hubbard, $s-d$ exchange (Kondo) and Anderson models. It is shown that these equations contain some additional terms which may play an important role in the ...
arxiv
Magnetization Plateaux in Quasi-One-Dimensional Strongly Correlated Electron Systems: A Brief Review [PDF]
arXiv, 2000 This is a short review of recent theoretical work on magnetization plateaux in one-dimensional strongly correlated electron systems, i.e. in spin chains, spin ladders or more generally, Hubbard chains and ladders.
arxiv
On the Problem of Validity of Anderson and Kondo Models in Physics of Strongly Correlated Electron Systems [PDF]
arXiv, 2015 We argue that the Anderson and Kondo models turn out to be irrelevant for the description of some strongly correlated electron systems and we suggest the mechanism for the formation of many-body states (heavy fermions) being an alternative to the Kondo one.
arxiv
Electronic Properties Of Buckminsterfullerenes: Degeneracies and Surprises [PDF]
arXiv, 1996 Buckminsterfullerene compounds exibit remarkable physics at low temperatures, e.g. high temperature superconductivity in alkali-fullerenes, and ferromagnetism in TDAE -C60. Here we review recent theoretical studies of electron correlations in these compounds.
arxiv