Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/3572 |
Resumo: | In this study, it is shown that two added, excess electrons with opposite spins in one-dimensional crystal lattices with quartic anharmonicity may form a bisolectron, which is a localized bound state of the paired electrons to a soliton-like lattice deformation. It is also shown that when the Coulomb repulsion is included, the wave function of the bisolectron has two maxima, and such a state is stable in lattices with strong enough electron (phonon/soliton)–lattice coupling. Furthermore, the energy of the bisolectron is shown to be lower than the energy of the state with two separate, independent electrons, as even with account of the Coulomb repulsion the bisolectron binding energy is positive. |
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Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystalsElectron pairingBisolectronAnharmonic latticeSolectronIn this study, it is shown that two added, excess electrons with opposite spins in one-dimensional crystal lattices with quartic anharmonicity may form a bisolectron, which is a localized bound state of the paired electrons to a soliton-like lattice deformation. It is also shown that when the Coulomb repulsion is included, the wave function of the bisolectron has two maxima, and such a state is stable in lattices with strong enough electron (phonon/soliton)–lattice coupling. Furthermore, the energy of the bisolectron is shown to be lower than the energy of the state with two separate, independent electrons, as even with account of the Coulomb repulsion the bisolectron binding energy is positive.WileySapientiaVelarde, M. G.Brizhik, L.Chetverikov, A. P.Cruzeiro, LeonorEbeling, W.Röpke, G.2014-03-05T14:54:05Z2012-07-052014-02-27T16:36:16Z2012-07-05T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/3572engVelarde, M.G.; Brizhik, L.; Chetverikov, A.P.; Cruzeiro, L.; Ebeling, W.; Röpke, G. Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals, International Journal of Quantum Chemistry, 112, 13, 2591-2598, 2012.0020-7608AUT: LHA01632http://dx.doi.org/10.1002/qua.23282info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:14:36Zoai:sapientia.ualg.pt:10400.1/3572Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:57:04.238911Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals |
title |
Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals |
spellingShingle |
Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals Velarde, M. G. Electron pairing Bisolectron Anharmonic lattice Solectron |
title_short |
Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals |
title_full |
Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals |
title_fullStr |
Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals |
title_full_unstemmed |
Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals |
title_sort |
Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals |
author |
Velarde, M. G. |
author_facet |
Velarde, M. G. Brizhik, L. Chetverikov, A. P. Cruzeiro, Leonor Ebeling, W. Röpke, G. |
author_role |
author |
author2 |
Brizhik, L. Chetverikov, A. P. Cruzeiro, Leonor Ebeling, W. Röpke, G. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Velarde, M. G. Brizhik, L. Chetverikov, A. P. Cruzeiro, Leonor Ebeling, W. Röpke, G. |
dc.subject.por.fl_str_mv |
Electron pairing Bisolectron Anharmonic lattice Solectron |
topic |
Electron pairing Bisolectron Anharmonic lattice Solectron |
description |
In this study, it is shown that two added, excess electrons with opposite spins in one-dimensional crystal lattices with quartic anharmonicity may form a bisolectron, which is a localized bound state of the paired electrons to a soliton-like lattice deformation. It is also shown that when the Coulomb repulsion is included, the wave function of the bisolectron has two maxima, and such a state is stable in lattices with strong enough electron (phonon/soliton)–lattice coupling. Furthermore, the energy of the bisolectron is shown to be lower than the energy of the state with two separate, independent electrons, as even with account of the Coulomb repulsion the bisolectron binding energy is positive. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-07-05 2012-07-05T00:00:00Z 2014-03-05T14:54:05Z 2014-02-27T16:36:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/3572 |
url |
http://hdl.handle.net/10400.1/3572 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Velarde, M.G.; Brizhik, L.; Chetverikov, A.P.; Cruzeiro, L.; Ebeling, W.; Röpke, G. Quartic lattice interactions, soliton-like excitations, and electron pairing in one-dimensional anharmonic crystals, International Journal of Quantum Chemistry, 112, 13, 2591-2598, 2012. 0020-7608 AUT: LHA01632 http://dx.doi.org/10.1002/qua.23282 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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