Evolution of the magnetic properties in the antiferromagnet Ce2RhIn8 simultaneously doped with Cd and Ir

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Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorMax Planck Institute for Chemical Physics of Solids-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorNational Institute of Standards and Technology-
Autor(es): dc.creatorChristovam, D. S.-
Autor(es): dc.creatorFreitas, G. S.-
Autor(es): dc.creatorPiva, M. M.-
Autor(es): dc.creatorSouza, J. C.-
Autor(es): dc.creatorMalcolms, M. O.-
Autor(es): dc.creatorCanton, O. L. [UNESP]-
Autor(es): dc.creatorLeão, J. B.-
Autor(es): dc.creatorRatcliff, W.-
Autor(es): dc.creatorLynn, J. W.-
Autor(es): dc.creatorAdriano, C.-
Autor(es): dc.creatorPagliuso, P. G.-
Data de aceite: dc.date.accessioned2022-02-22T00:48:39Z-
Data de disponibilização: dc.date.available2022-02-22T00:48:39Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-11-19-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.102.195137-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/206928-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/206928-
Descrição: dc.descriptionWe report the evolution of the magnetic properties of Ce2Rh1-xIrxIn8-yCdy single crystals. In particular, for Ce2Rh0.5Ir0.5In8 (TN = 2.0 K) and Ce2Rh0.5Ir0.5In7.79Cd0.21 (TN = 4.2 K), we have solved the magnetic structure of these compounds using single-crystal neutron magnetic diffraction experiments. Taking the magnetic structure of the Ce2RhIn8 heavy-fermion antiferromagnet as a reference, we have identified no changes in the q=(12,12,0) magnetic wave vector; however, the direction of the ordered Ce3+ moments rotates toward the ab plane, under the influence of both dopants. By constraining the analysis of the crystalline electric field (CEF) with the experimental ordered moment's direction and high-temperature magnetic-susceptibility data, we have used a mean-field model with tetragonal CEF and exchange interactions to gain insight into the CEF scheme and anisotropy of the CEF ground-state wave function when Cd and Ir are introduced into Ce2RhIn8. Consistent with previous work, we find that Cd doping in Ce2RhIn8 tends to rotate the magnetic moment toward the ab plane and lower the energy of the CEF excited states' levels. Interestingly, the presence of Ir also rotates the magnetic moment towards the ab plane although its connection to the CEF overall splitting evolution for the y = 0 samples may not be straightforward. These findings may shed light on the origin of the disordered spin-glass phase on the Ir-rich side of the phase diagram and also indicate that the Ce2MIn8 compounds may not follow exactly the same Rh-Ir CEF effects trend established for the CeMIn5 compounds.-
Descrição: dc.descriptionInstituto de Física Gleb Wataghin Unicamp-
Descrição: dc.descriptionMax Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40-
Descrição: dc.descriptionInstituto de Física Teórica Universidade Estadual Paulista-UNESP-
Descrição: dc.descriptionNist Center for Neutron Research National Institute of Standards and Technology-
Descrição: dc.descriptionInstituto de Física Teórica Universidade Estadual Paulista-UNESP-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review B-
???dc.source???: dc.sourceScopus-
Título: dc.titleEvolution of the magnetic properties in the antiferromagnet Ce2RhIn8 simultaneously doped with Cd and Ir-
Tipo de arquivo: dc.typelivro digital-
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