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

2014
journal article
article
3
cris.lastimport.wos2024-04-09T18:50:13Z
dc.abstract.enWe 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.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorKądzielawa-Major, Ewapl
dc.contributor.authorSpałek, Józef - 132018 pl
dc.date.accessioned2015-04-27T10:07:35Z
dc.date.available2015-04-27T10:07:35Z
dc.date.issued2014pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.number4Apl
dc.description.physicalA100-A103pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume126pl
dc.identifier.doi10.12693/APhysPolA.126.A-100pl
dc.identifier.eissn1898-794Xpl
dc.identifier.issn0587-4246pl
dc.identifier.projectROD UJ / Ppl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/5813
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa*
dc.rights.licenceInna otwarta licencja
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subtypeArticlepl
dc.titleAnderson-Kondo lattice Hamiltonian from the Anderson-Lattice model : a modified Schrieffer-Wolff transformation and the effective exchange interactionspl
dc.title.journalActa Physica Polonica. Apl
dc.title.volumeProceedings of the XVI National Conference on Superconductivity and Strongly Correlated Systems, Zakopane, Poland, October 7-12, 2013pl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T18:50:13Z
dc.abstract.enpl
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.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.authorpl
Kądzielawa-Major, Ewa
dc.contributor.authorpl
Spałek, Józef - 132018
dc.date.accessioned
2015-04-27T10:07:35Z
dc.date.available
2015-04-27T10:07:35Z
dc.date.issuedpl
2014
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.numberpl
4A
dc.description.physicalpl
A100-A103
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
126
dc.identifier.doipl
10.12693/APhysPolA.126.A-100
dc.identifier.eissnpl
1898-794X
dc.identifier.issnpl
0587-4246
dc.identifier.projectpl
ROD UJ / P
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/5813
dc.languagepl
eng
dc.language.containerpl
eng
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.subtypepl
Article
dc.titlepl
Anderson-Kondo lattice Hamiltonian from the Anderson-Lattice model : a modified Schrieffer-Wolff transformation and the effective exchange interactions
dc.title.journalpl
Acta Physica Polonica. A
dc.title.volumepl
Proceedings of the XVI National Conference on Superconductivity and Strongly Correlated Systems, Zakopane, Poland, October 7-12, 2013
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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