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Artículo
Origin and evaluation of the four-spin operators in magnetic lattices
dc.creator | Jiménez Calzado, Carmen | es |
dc.creator | Malrieu, J.P. | es |
dc.date.accessioned | 2016-10-26T12:40:53Z | |
dc.date.available | 2016-10-26T12:40:53Z | |
dc.date.issued | 2004 | |
dc.identifier.citation | Jiménez Calzado, C. y Malrieu, J.P. (2004). Origin and evaluation of the four-spin operators in magnetic lattices. Physical Review B - Condensed Matter and Materials Physics, 69 (9), 944351-9443511. | |
dc.identifier.issn | 1098-0121 | es |
dc.identifier.uri | http://hdl.handle.net/11441/48184 | |
dc.description.abstract | The four-spin operators are suspected to have a significant amplitude and an impact on the collective properties in spin ladders and magnetic two-dimensional lattices. They originate from cyclic circulation of electrons ~ring currents!. Starting from a simple Hubbard Hamiltonian one may establish their form from a fourth order expansion of quasidegenerate perturbation theory. This form slightly deviates from the generally assumed biquadratic expression. From a quantitative point of view, their amplitude can be assessed from accurate ab initio explicitly correlated wave functions and energies on embedded clusters. The present work shows that symmetry-broken density functional theory calculations may also provide estimates of the fourbody operator amplitudes, but reliable results require the use of a large Fock component in the exchange functional | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | American Physical Society | es |
dc.relation.ispartof | Physical Review B - Condensed Matter and Materials Physics, 69 (9), 944351-9443511. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Origin and evaluation of the four-spin operators in magnetic lattices | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Física | es |
dc.relation.publisherversion | 10.1103/PhysRevB.69.094435 | es |
dc.identifier.doi | 10.1103/PhysRevB.69.094435 | es |
idus.format.extent | 11 p. | es |
dc.journaltitle | Physical Review B - Condensed Matter and Materials Physics | es |
dc.publication.volumen | 69 | es |
dc.publication.issue | 9 | es |
dc.publication.initialPage | 944351 | es |
dc.publication.endPage | 9443511 | es |
dc.identifier.idus | https://idus.us.es/xmlui/handle/11441/48184 |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Origin and evaluation.pdf | 246.7Kb | [PDF] | Ver/ | |