Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit

Detalhes bibliográficos
Autor(a) principal: Brunnet, Leonardo Gregory
Data de Publicação: 1992
Outros Autores: Gusmao, Miguel Angelo Cavalheiro, Iglesias, Jose Roberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/103612
Resumo: The Green's functions relevant to the periodic Anderson Hamiltonian are calculated via perturbation theory around the atomic limit. The approximation reproduces exact results in three different limits: zero bandwidth, zero hybridization, and zero Coulomb correlation. The density of states, the magnetic susceptibility, and the electronic specific heat are calculated and discussed in both the Kondo and intermediate-valence regimes for different values of hybridization and Coulomb repulsion. The results are in qualitative agreement with experiments and are related to other theoretical calculations.
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spelling Brunnet, Leonardo GregoryGusmao, Miguel Angelo CavalheiroIglesias, Jose Roberto2014-09-23T02:12:19Z19920163-1829http://hdl.handle.net/10183/103612000056070The Green's functions relevant to the periodic Anderson Hamiltonian are calculated via perturbation theory around the atomic limit. The approximation reproduces exact results in three different limits: zero bandwidth, zero hybridization, and zero Coulomb correlation. The density of states, the magnetic susceptibility, and the electronic specific heat are calculated and discussed in both the Kondo and intermediate-valence regimes for different values of hybridization and Coulomb repulsion. The results are in qualitative agreement with experiments and are related to other theoretical calculations.application/pdfengPhysical review. B, Condensed matter. New York. Vol. 46, n. 8 (Aug. 1992), p. 4520-4526Física da matéria condensadaFisica teorica da materia condensadaMetodos de funcoes de greenTeoria de perturbacaoEfeito kondoMagnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limitEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000056070.pdf000056070.pdfTexto completo (inglês)application/pdf711678http://www.lume.ufrgs.br/bitstream/10183/103612/1/000056070.pdf99c2d1e149c1bf6dcfcafcb6559fb709MD51TEXT000056070.pdf.txt000056070.pdf.txtExtracted Texttext/plain22684http://www.lume.ufrgs.br/bitstream/10183/103612/2/000056070.pdf.txtfc70dde303a4f324f6dafce66cd8fe09MD52THUMBNAIL000056070.pdf.jpg000056070.pdf.jpgGenerated Thumbnailimage/jpeg2141http://www.lume.ufrgs.br/bitstream/10183/103612/3/000056070.pdf.jpge4064ef562d31b31d44016ed6b0379ddMD5310183/1036122024-05-19 05:46:14.955154oai:www.lume.ufrgs.br:10183/103612Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-05-19T08:46:14Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit
title Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit
spellingShingle Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit
Brunnet, Leonardo Gregory
Física da matéria condensada
Fisica teorica da materia condensada
Metodos de funcoes de green
Teoria de perturbacao
Efeito kondo
title_short Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit
title_full Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit
title_fullStr Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit
title_full_unstemmed Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit
title_sort Magnetic susceptibility and specific heat of the anderson lattice : perturbative expansion around the atomic limit
author Brunnet, Leonardo Gregory
author_facet Brunnet, Leonardo Gregory
Gusmao, Miguel Angelo Cavalheiro
Iglesias, Jose Roberto
author_role author
author2 Gusmao, Miguel Angelo Cavalheiro
Iglesias, Jose Roberto
author2_role author
author
dc.contributor.author.fl_str_mv Brunnet, Leonardo Gregory
Gusmao, Miguel Angelo Cavalheiro
Iglesias, Jose Roberto
dc.subject.por.fl_str_mv Física da matéria condensada
Fisica teorica da materia condensada
Metodos de funcoes de green
Teoria de perturbacao
Efeito kondo
topic Física da matéria condensada
Fisica teorica da materia condensada
Metodos de funcoes de green
Teoria de perturbacao
Efeito kondo
description The Green's functions relevant to the periodic Anderson Hamiltonian are calculated via perturbation theory around the atomic limit. The approximation reproduces exact results in three different limits: zero bandwidth, zero hybridization, and zero Coulomb correlation. The density of states, the magnetic susceptibility, and the electronic specific heat are calculated and discussed in both the Kondo and intermediate-valence regimes for different values of hybridization and Coulomb repulsion. The results are in qualitative agreement with experiments and are related to other theoretical calculations.
publishDate 1992
dc.date.issued.fl_str_mv 1992
dc.date.accessioned.fl_str_mv 2014-09-23T02:12:19Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/103612
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review. B, Condensed matter. New York. Vol. 46, n. 8 (Aug. 1992), p. 4520-4526
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