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dc.contributor.author
Aligia, Armando Ángel
dc.date.available
2023-08-18T16:43:48Z
dc.date.issued
2022-05
dc.identifier.citation
Aligia, Armando Ángel; Low-energy physics for an iron phthalocyanine molecule on Au(111); American Physical Society; Physical Review B; 105; 20; 5-2022; 1-8
dc.identifier.issn
2469-9950
dc.identifier.uri
http://hdl.handle.net/11336/208764
dc.description.abstract
The system of an iron phthalocyanine molecule on the Au(111) surface has been studied recently due to its peculiar properties. In particular, several surprising results of scanning tunneling spectroscopy changing the position of the molecule and applying magnetic field can be explained by the non-Landau Fermi liquid state of a two-channel spin-1 Kondo model with anisotropy. The localized orbitals near the Fermi level are three, one of symmetry z2 and two (nearly) degenerate π orbitals of symmetry xz and yz. Previous studies using the numerical renormalization group neglected one of these orbitals to render the problem tractable. Here we investigate, using a slave-boson mean-field approximation, if the splitting S between π orbitals caused by spin-orbit coupling (SOC) justifies this approximation. We obtain an abrupt transition from a three-band regime to a two-band one at a value of S, which is about 1/3 of the atomic SOC for Fe, justifying the two-band model for the system.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Non-Landau Fermi liquid
dc.subject
Kondo model
dc.subject
Two-channel spin-1 Kondo model
dc.subject
Anisotropy
dc.subject.classification
Física de los Materiales Condensados
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Low-energy physics for an iron phthalocyanine molecule on Au(111)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-10T11:16:33Z
dc.identifier.eissn
2469-9969
dc.journal.volume
105
dc.journal.number
20
dc.journal.pagination
1-8
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Aligia, Armando Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche | Comisión Nacional de Energía Atómica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche; Argentina
dc.journal.title
Physical Review B
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.105.205114
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