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Phase analysis of near equiatomic bulk FeRh alloys: X-ray versus neutron diffraction and magnetization measurements

dc.contributor.authorPadrón Alemán, K.
dc.contributor.authorArreguín Hernández, M. L.
dc.contributor.authorCuello, G. J.
dc.contributor.authorÁlvarez Alonso, Pablo 
dc.contributor.authorSánchez Llamazares, J.L.
dc.date.accessioned2024-09-26T08:30:18Z
dc.date.available2024-09-26T08:30:18Z
dc.date.issued2024
dc.identifier.issn0254-0584
dc.identifier.urihttps://hdl.handle.net/10651/74710
dc.description.abstractThe information obtained by X-ray diffraction (XRD) by impinging the X-ray beam onto the flat surface of bulk Fe–Rh alloys is contrasted with that provided by the thermomagnetic analysis curves measured under a magnetic field of 5 mT and 2 T, and the neutron diffraction (ND) patterns. The experiments were performed on slices cut from bulk Fe50Rh50 and Fe49Rh51 alloys prepared by induction melting followed by 48 h of thermal annealing at 1273 K. Whereas ND patterns and magnetization curves, directly and indirectly point out that the samples are single-phase with a CsCl-type crystal structure undergoing a magnetoelastic transition that changes the magnetic structure from antiferromagnetic to ferromagnetic on heating, multiple phases are identified in the XRD patterns, which modify upon polishing or etching the surface with a mixture of hydrochloric (HCl) and nitric acid (HNO3) at a volume ratio of 90:10 from 30 to 210 min. The limitation of XRD for accurately characterizing the phase constitution within the bulk of Fe–Rh alloys is underlined.spa
dc.description.sponsorshipWork supported by CONAHCYT, Mexico (project No. CF-2023-I- 2143), Laboratorio Nacional de Nanociencias y Nanotecnologia (LINAN, IPICyT), Spanish MCIN/AEI/10.13039/501100011033/and ERDF, UE (project number: PID2022-138256NB-C21. M.L. Arreguín-Hernández thanks DGAPA-UNAM and CONAHCYT for supporting her postdoctoral position at UNAM and Ph.D. studies at IPICyT (scholarship 861515; 2023–2020), respectively. K. Padrón-Alemán acknowledges the Institut Laue-Langevin for his PhD/CFR contract (Reference: ESP-5-2023). The authors are grateful to M. Sc. Beatriz A. Rivera Escoto for her technical support.spa
dc.language.isoengspa
dc.relation.ispartofMaterials Chemistry and Physics, 327spa
dc.rights© 2024 Elsevier B.V.
dc.subjectIron-rhodium alloysspa
dc.subjectX-ray and neutron diffraction analysesspa
dc.subjectFirst-order magnetoelastic transitionspa
dc.titlePhase analysis of near equiatomic bulk FeRh alloys: X-ray versus neutron diffraction and magnetization measurementsspa
dc.typejournal articlespa
dc.identifier.doi10.1016/j.matchemphys.2024.129904
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-138256NB-C21/ES/BUSCANDO MATERIALES MAGNETOCALORICOS MEJORADOS PARA LA LICUEFACCION DE HIDROGENO APROVECHANDO LA ANISOTROPIA MAGNETICA/spa
dc.relation.publisherversionhttps://doi.org/10.1016/j.matchemphys.2024.129904spa
dc.rights.accessRightsembargoed accessspa
dc.type.hasVersionAMspa


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