Magnetothermal properties of TmxDy1-xAl2 (x = 0.25, 0.50 and 0.75) Ribeiro, Paula Ahlo, Bruno de Oliveira, R. S. Nóbrega, Eduardo de Sousa, Vinicius von Ranke, Pedro Mudryk, Yaroslav Pecharsky, Vitalij
dc.contributor.department Ames Laboratory
dc.contributor.department Materials Science and Engineering 2020-11-12T22:43:09.000 2021-02-24T20:27:41Z 2021-02-24T20:27:41Z 2021-10-24 2020-10-24
dc.description.abstract <p>We describe magnetic, thermal, and magnetocaloric properties of rare earth intermetallic compounds TmxDy1−xAl2 with 𝑥 = 0.25, 0.5 and 0.75. Using model Hamiltonian we consider contributions of the crystalline electric field anisotropy in both Tm and Dy magnetic sublattices, disorder in exchange interactions among Tm-Tm, Dy-Dy and Tm-Dy magnetic ions, and the Zeeman effect. Employing earlier reported and new experimental measurements, we first determine a single free variable – the intersublattice magnetic exchange parameter – to properly model the temperature and magnetic field dependencies of heat capacity and magnetization, and then use the modeling results to explain the emergence of an anomalous spin reorientation transition and its influence on the magnetocaloric effect in the title compounds. Theoretical results agree with experimental data reasonably well.</p>
dc.identifier archive/
dc.identifier.articleid 1764
dc.identifier.contextkey 20171953
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/763
dc.language.iso en
dc.relation.ispartofseries IS-J 10354
dc.source.bitstream archive/|||Sat Jan 15 01:51:34 UTC 2022
dc.source.uri 10.1016/j.jallcom.2020.157682
dc.subject.disciplines Metallurgy
dc.subject.keywords Heat capacity
dc.subject.keywords Magnetocaloric effect
dc.subject.keywords Intermetallic compounds
dc.subject.keywords Magnetic anisotropy
dc.title Magnetothermal properties of TmxDy1-xAl2 (x = 0.25, 0.50 and 0.75)
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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