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dc.contributor.author
Sereni, Julian Gustavo Renzo
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dc.contributor.author
Curlík, Ivan
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dc.contributor.author
Reiffers, M.
dc.contributor.author
Giovannini, M.
dc.date.available
2024-01-30T14:40:49Z
dc.date.issued
2023-07
dc.identifier.citation
Sereni, Julian Gustavo Renzo; Curlík, Ivan; Reiffers, M.; Giovannini, M.; Evidence for magnetic dimers and skyrmion lattice formation in Eu2Pd2Sn; American Physical Society; Physical Review B; 108; 1; 7-2023; 144271-1442713
dc.identifier.issn
2469-9950
dc.identifier.uri
http://hdl.handle.net/11336/225241
dc.description.abstract
The magnetic, thermal, and transport properties of the noncentrosymmetric compound Eu2Pd2Sn are reexamined with the inclusion of detailed measurements. In its paramagnetic phase, the outstanding feature of this compound is the formation of Eu2+ dimers, which allows us to understand the deviation of the magnetic susceptibility χ(T) from the Curie-Weiss law below about 70 K, the field-dependent magnetization M(B) below ≈80K, and the reduced entropy at the ordering temperature S(TN)=0.64Rln(8). A significant change in the exchange interactions occurs between T≈70K (where θP=18K) and TN=13.3K (to θP=-4.5K). The strong electronic overlap, arising from the reduced Eu-Eu spacing (compared with that in pure Eu2+) is expected to favor dimer quasiparticles formation, leading to a significant change in the magnetic structure. From the analysis of the derivatives of the magnetic parameters, ∂χ/∂T and ∂M/∂B, as well as the field dependence of the specific heat and mangnetoresistance, a comprehensive magnetic phase diagram is obtained. Two critical points are recognized and a tentative description of the magnetic structures is proposed. The possible formation of a skyrmion lattice, arising from the presence of magnetically frustrated pockets in the phase diagram, is suggested by theoretical studies on hexagonal structures that exhibit similar interaction patterns.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Magnetismo
dc.subject
Dimerización
dc.subject
Diagrama de fase magnetico
dc.subject
Skyrmion
dc.subject.classification
Física de los Materiales Condensados
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Evidence for magnetic dimers and skyrmion lattice formation in Eu2Pd2Sn
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-01-29T15:49:02Z
dc.identifier.eissn
2469-9969
dc.journal.volume
108
dc.journal.number
1
dc.journal.pagination
144271-1442713
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Sereni, Julian Gustavo Renzo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Curlík, Ivan. University of Prešov; Eslovaquia
dc.description.fil
Fil: Reiffers, M.. University of Prešov; Eslovaquia
dc.description.fil
Fil: Giovannini, M.. Università degli Studi di Genova; Italia
dc.journal.title
Physical Review B
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevB.108.014427
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.108.014427
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