Magnetic structures in UCuSn

Sami El-Khatib, Anna Llobet, Agus Purwanto, Robert A. Robinson, Seung Hun Lee, Jeffrey W. Lynn, Sung Chang, Heinz Nakotte

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Abstract

We report neutron-diffraction results on UCuSn which crystallizes in the orthorhombic P 21 cn structure. This compound undergoes two magnetic transitions around TN =62 K and TM =25 K. At T=52 K, UCuSn exhibits a noncollinear arrangement of uranium moments of ∼1.5 μB U -atom with components in all three principal directions. Our diffraction data provide further evidence that the transition around 25 K is indeed magnetic in origin, although our refinements did not lead to a conclusive answer on its exact nature.

Original languageEnglish (US)
Article number08P704
JournalJournal of Applied Physics
Volume99
Issue number8
DOIs
StatePublished - 2006

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