Jagiellonian University Repository

Anderson-Kondo lattice Hamiltonian from the Anderson-Lattice model : a modified Schrieffer-Wolff transformation and the effective exchange interactions

Anderson-Kondo lattice Hamiltonian from the ...

Show full item record

dc.contributor.author Kądzielawa-Major, Ewa pl
dc.contributor.author Spałek, Józef [SAP11015561] pl
dc.date.accessioned 2015-04-27T10:07:35Z
dc.date.available 2015-04-27T10:07:35Z
dc.date.issued 2014 pl
dc.identifier.issn 0587-4246 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/5813
dc.language eng pl
dc.rights Dodaję tylko opis bibliograficzny *
dc.rights.uri *
dc.title Anderson-Kondo lattice Hamiltonian from the Anderson-Lattice model : a modified Schrieffer-Wolff transformation and the effective exchange interactions pl
dc.type JournalArticle pl
dc.description.physical A100-A103 pl
dc.abstract.en We derive the Anderson-Kondo lattice model by applying canonical perturbation expansion for the Anderson-lattice model in direct space. The transformation is carried out up to the fourth order by a modified Schrieffer-Wolff transformation: we separate the part of hybridization term responsible for the high-energy processes (involving the largest in-the-system intraatomic Coulomb interaction between f electrons) and replace it with the virtual processes in higher orders. The higher-order processes lead to three separate exchange interactions. The obtained Hamiltonian contains both the Kondo (f-c) and the superexchange (f-f) interactions, as well as a residual hybridization responsible for the heavy-quasiparticle formation. This effective Hamiltonian can be used to analyze the magnetic or the paired states, as well their coexistence in heavy-fermion systems. The magnitudes of both the Kondo exchange and the superexchange integrals are estimated as a function of bare hybridization magnitude. pl
dc.description.volume 126 pl
dc.description.number 4A pl
dc.identifier.doi 10.12693/APhysPolA.126.A-100 pl
dc.identifier.eissn 1898-794X pl
dc.title.journal Acta Physica Polonica. A, General Physics, Solid State Physics, Applied Physics pl
dc.title.volume Proceedings of the XVI National Conference on Superconductivity and Strongly Correlated Systems, Zakopane, Poland, October 7-12, 2013 pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.subtype Article pl
dc.rights.original OTHER; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0 pl
.pointsMNiSW [2014 A]: 15


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)