Magnetostructural transition in Gd5Sb0.5Ge3.5

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dc.contributor.author Lograsso, Thomas
dc.contributor.author Chernyshov, A.
dc.contributor.author Schlagel, Deborah
dc.contributor.author Mudryk, Yaroslav
dc.contributor.author Paudyal, Durga
dc.contributor.author Pecharsky, Vitalij
dc.contributor.author Gschneidner, Karl
dc.contributor.author Schlagel, Deborah
dc.contributor.author Lograsso, Thomas
dc.contributor.department Ames Laboratory
dc.date 2018-02-13T14:29:59.000
dc.date.accessioned 2020-06-29T23:27:51Z
dc.date.available 2020-06-29T23:27:51Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2009
dc.date.embargo 2013-09-21
dc.date.issued 2009-11-17
dc.description.abstract <p>Magnetic and crystallographic properties of Gd<sub>5</sub>Sb<sub>0.5</sub>Ge<sub>3.5</sub> were investigated using dc magnetization, ac magnetic susceptibility, and heat capacity of an oriented single crystal, combined with temperature and magnetic field dependent x-ray powder diffraction. The compound undergoes an unusual magnetostructural transition at 40 K and a nonmagnetic second-order transition around 63 K. The detailed crystallographic study of Gd<sub>5</sub>Sb<sub>0.5</sub>Ge<sub>3.5</sub> shows that contrary to the R<sub>5</sub>(Si<sub>x</sub>Ge<sub>1−x</sub>)<sub>4</sub> systems (R is a rare-earth metal), the structural transition occurs without shear displacements of the <sub>∞</sub>2[R<sub>5</sub>T<sub>4</sub>] slabs (T=Si, Ge, and Sb), and a substantial volume change (−0.5%) does not lead to a change in crystallographic symmetry. The first-principles electronic structure calculations show higher interslab than intraslab ferromagnetic exchange interaction indicating that Sm<sub>5</sub>Ge<sub>4</sub> type of structure supports a ferromagnetic ground state in Gd<sub>5</sub>Sb<sub>0.5</sub>Ge<sub>3.5</sub>.</p>
dc.description.comments <p>This article is from <em>Physical Review B</em> 80, no. 18 (2009): 184416, doi:<a href="http://dx.doi.org/10.1103/PhysRevB.80.184416" target="_blank">10.1103/PhysRevB.80.184416</a>.</p>
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dc.identifier archive/lib.dr.iastate.edu/ameslab_pubs/67/
dc.identifier.articleid 1057
dc.identifier.contextkey 4611578
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/67
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/8028
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_pubs/67/2009_ChernyshovAS_MagnetostructuralTransitionGd5Sb05Ge35.pdf|||Sat Jan 15 01:26:43 UTC 2022
dc.source.uri 10.1103/PhysRevB.80.184416
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Metallurgy
dc.subject.keywords Materials Science and Engineering
dc.title Magnetostructural transition in Gd5Sb0.5Ge3.5
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 316ee29f-99a9-49bc-a048-0f43caf97aa5
relation.isAuthorOfPublication 220ce8a4-546b-4118-8d44-911799a0ffa1
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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