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arXiv · 1701.05488

Low temperature magnetic structure of CeRhIn$_5$ by neutron diffraction on absorption-optimized samples

D M Fobes·E D Bauer·J D Thompson·A Sazonov·V Hutanu·S. Zhang·F Ronning·M Janoschek
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Abstract

Two aspects of the ambient pressure magnetic structure of heavy fermion material CeRhIn$_5$ have remained under some debate since its discovery: whether the structure is indeed an incommensurate helix or a spin density wave, and what is the precise magnitude of the ordered magnetic moment. By using a single crystal sample optimized for hot neutrons to minimize neutron absorption by Rh and In, here we report an ordered moment of $m=0.54(2)~μ_B$. In addition, by using spherical neutron polarimetry measurements on a similar single crystal sample, we have confirmed the helical nature of the magnetic structure, and identified a single chiral domain.

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D M Fobes, E D Bauer, J D Thompson, A Sazonov, V Hutanu, S. Zhang, F Ronning, M Janoschek. 2017-03-28. Low temperature magnetic structure of CeRhIn$_5$ by neutron diffraction on absorption-optimized samples. https://doi.org/10.1088/1361-648x%2Faa6696

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