Strict limit on in-plane ordered magnetic dipole moment in URu2 Si2

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DOIResolve DOI: http://doi.org/10.1103/PhysRevB.89.155122
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TypeArticle
Journal titlePhysical Review B - Condensed Matter and Materials Physics
ISSN1098-0121
Volume89
Issue15
Article number155122
Pages18; # of pages: 8
AbstractNeutron diffraction is used to examine the polarization of weak static antiferromagnetism in high quality single crystalline URu2Si2. As previously documented, elastic Bragg-like diffraction develops for temperature T<THO=17.5 K at q=(100) but not at wave vector transfer q=(001). The peak width indicates correlation lengths ξc=230(12) Å and ξa=240(15) Å. The integrated intensity of the T-dependent peaks corresponds to a sample averaged c-oriented staggered moment of μc=0.022(1)μB at T=1.7 K. The absence of T-dependent diffraction at q=(001) places a limit μ¥<0.0011μB on an f- or d-orbital-based in-plane staggered magnetic dipole moment, which is associated with multipolar orders proposed for URu2Si2.
Publication date
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; National Research Council Canada
Peer reviewedYes
NPARC number21272725
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Record identifiereb673c61-234b-4bb6-a946-59c85fd079a6
Record created2014-12-03
Record modified2016-05-09
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