Magnetic behavior of RMn2+xAl10−x (R=La,Gd) crystals Sefat, Athena Li, Bin Canfield, Paul Bud'ko, Sergey Canfield, Paul
dc.contributor.department Ames Laboratory 2018-02-14T12:25:09.000 2020-06-29T23:25:51Z 2020-06-29T23:25:51Z Mon Jan 01 00:00:00 UTC 2007 2014-09-07 2007-11-12
dc.description.abstract <p>The crystallographic and magnetic properties of the solution grown RMn2+xAl10−x (R=Gd and La) crystals with tetragonal (P4∕nmm) structure are investigated. For these, single-crystal x-ray diffraction results have shown the preferential occupation of excess manganese on the aluminum 8i crystallographic site. Due to excess Mn, there is evidence of local-moment magnetism in LaMn2+xAl10−x and their random distribution is thought to be responsible for the magnetic correlations below ∼50K and the spin-glass behavior below ∼3K. For GdMn2+xAl10−x, the extra manganese influences temperature below which the sample enters into a state with a net ferromagnetic component: TC≈16K for GdMn2.21(4)Al9.79(4) and 25.5K for GdMn2.39(2)Al9.61(2). Assuming a linear dependence between TC and excess Mn concentration, the fully stoichiometric and ordered GdMn2Al10 should have TC≈5K.</p>
dc.description.comments <p>This article is from <em>Physical Review B</em> 76 (2007): 174419, doi:<a href="" target="_blank">10.1103/PhysRevB.76.174419</a>. Posted with permission.</p>
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dc.identifier archive/
dc.identifier.articleid 1189
dc.identifier.contextkey 6086107
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/202
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 22:20:59 UTC 2022
dc.source.uri 10.1103/PhysRevB.76.174419
dc.subject.disciplines Condensed Matter Physics
dc.subject.keywords Chemistry
dc.subject.keywords Physics and Astronomy
dc.title Magnetic behavior of RMn2+xAl10−x (R=La,Gd) crystals
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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