Abstract

The magnetic ordering of TbRhSn, crystallizing in the hexagonal ZrNiAl-type structure, has been investigated by high-resolution neutron diffractometry in the temperature range between 1.7 and 23.9K. Tb in TbRhSn has been found to order magnetically below 19K. Its magnetic structure corresponds to propagation vector k→=[12,0,12], and by a new group-theoretical analysis is shown to be based on the two irreducible representations τ2 and τ4. This model also explains the change of magnetic ordering at Tt=11K. New aspects of bulk magnetic measurements are also reported. Moreover, our results are compared with previously published data.

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