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dc.contributor.author
Franco, Diego Gaspar
dc.contributor.author
Geibel, C.
dc.date.available
2022-07-14T14:45:02Z
dc.date.issued
2021-08
dc.identifier.citation
Franco, Diego Gaspar; Geibel, C.; Synthesis and study of the chiral magnetic system EuIr2 P2; American Physical Society; Physical Review B; 104; 5; 8-2021; 1-8
dc.identifier.issn
2469-9969
dc.identifier.uri
http://hdl.handle.net/11336/162139
dc.description.abstract
Chiral materials, where no improper symmetry operations such as inversion are present, are systems prone to the appearance of a skyrmion lattice. Recently it has been shown theoretically that not only ferromagnets (FMs) but also antiferromagnets (AFMs) can host such kind of phases. In this work we study a new candidate for AFM skyrmions, EuIr2P2, by means of magnetization and specific heat measurements on poly and single crystals. X-ray diffraction confirms a trigonal chiral crystal structure, where europium ions form helices along the c direction. In spite of predominantly FM interactions, Eu2+ ions order antiferromagnetically at TN1=5 K in what seems to be an incommensurate amplitude-modulated magnetic state where the moments are oriented mainly along the c direction. A second magnetic transition takes place at TN2=2.9 K, involving the ordering of an in-plane component of the Eu moment likely resulting in an equal-moment structure. Specific heat data show a tail above TN1. Accordingly the magnetic entropy at TN1 is strongly reduced in comparison to the expected Rln8 value. This evidences a significant amount of frustration. A simple analysis based on a Heisenberg model indicates that the observed properties imply the presence of several relevant interactions, with competing FM and AFM ones resulting in frustration. Thus EuIr2P2 is a new interesting magnetic system, where chirality and frustration might result in unconventional magnetic textures.
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
FRUSTRATED MAGNETISM
dc.subject
ANTIFERROMAGNET
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Física de los Materiales Condensados
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Synthesis and study of the chiral magnetic system EuIr2 P2
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-03-08T22:03:48Z
dc.journal.volume
104
dc.journal.number
5
dc.journal.pagination
1-8
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Franco, Diego Gaspar. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Geibel, C.. Max Planck Institute for Chemical Physics of Solids; Alemania
dc.journal.title
Physical Review B
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevB.104.054416
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.104.054416
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