Strict Limit on In-Plane Ordered Magnetic Dipole Moment in URu2Si2

Published

April 17, 2014

Author(s)

Kathryn Aileen Ross, Leland Weldon Harriger, Z. Yamani, W. J. L. Buyers, J.D. Garrett, A.A. Menovsky, J.A. Mydosh, Collin L. Broholm

Abstract

Neutron 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 Τ HO = 17.5 K at q = (100) but not at wave vector transfer q = (001). The peak width indicates correlation lengths ξ_c = 230(12) A and ξ_c = 240(15) A. The integrated intensity of the Τ-dependent peaks corresponds to a sample averaged c-oriented staggered moment of υ_c = 0.0221(1)_υB at τ = 1.7 K. The absence of τ-dependent diffraction at q = (001) places a limit υ υ on an f - or d-orbital based in-plane staggered magnetic dipole moment, which is associated with multipolar orders propsed for URud2^Si₂.

Citation

Physical Review B

Volume

89

Issue

15

Pub Type

Journals

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Keywords

Condensed Matter, Correlated electron, Heavy Fermion, magnetic structure

Citation

, K. , , L. , Yamani, Z. , L., W. , Garrett, J. , Menovsky, A. , Mydosh, J. and Broholm, C. (2014), Strict Limit on In-Plane Ordered Magnetic Dipole Moment in URu₂Si₂, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915584 (Accessed October 16, 2025)