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Anderson-Kondo lattice Hamiltonian from the Anderson-Lattice model : a modified Schrieffer-Wolff transformation and the effective exchange interactions
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.
| cris.lastimport.wos | 2024-04-09T18:50:13Z | |
| 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.affiliation | Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego | pl |
| dc.contributor.author | Kądzielawa-Major, Ewa | pl |
| dc.contributor.author | Spałek, Józef - 132018 | pl |
| dc.date.accessioned | 2015-04-27T10:07:35Z | |
| dc.date.available | 2015-04-27T10:07:35Z | |
| dc.date.issued | 2014 | pl |
| dc.date.openaccess | 0 | |
| dc.description.accesstime | w momencie opublikowania | |
| dc.description.number | 4A | pl |
| dc.description.physical | A100-A103 | pl |
| dc.description.version | ostateczna wersja wydawcy | |
| dc.description.volume | 126 | pl |
| dc.identifier.doi | 10.12693/APhysPolA.126.A-100 | pl |
| dc.identifier.eissn | 1898-794X | pl |
| dc.identifier.issn | 0587-4246 | pl |
| dc.identifier.project | ROD UJ / P | pl |
| dc.identifier.uri | http://ruj.uj.edu.pl/xmlui/handle/item/5813 | |
| dc.language | eng | pl |
| dc.language.container | eng | pl |
| dc.rights | Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa | * |
| dc.rights.licence | Inna otwarta licencja | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl | * |
| dc.share.type | otwarte czasopismo | |
| dc.subtype | Article | pl |
| dc.title | Anderson-Kondo lattice Hamiltonian from the Anderson-Lattice model : a modified Schrieffer-Wolff transformation and the effective exchange interactions | pl |
| dc.title.journal | Acta Physica Polonica. A | pl |
| dc.title.volume | Proceedings of the XVI National Conference on Superconductivity and Strongly Correlated Systems, Zakopane, Poland, October 7-12, 2013 | pl |
| dc.type | JournalArticle | pl |
| dspace.entity.type | Publication |
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