Abstract
The magnetic properties of polycrystalline PrRh 2Si 2 sample have been investigated by neutron diffraction measurements. Antiferromagnetic transition with an anomalously high ordering temperature ( T N∼68 K) is clearly observed in magnetic susceptibility, specific heat, electrical resistivity and neutron diffraction measurements. Neutron diffraction study shows that Pr 3+ ions carry an ordered moment of 2.99(7) μ B/Pr 3+ and align along the crystallographic± c-directions for the ions located at the (0,0,0) and ( 1 2 , 1 2 , 1 2 ) positions. The magnetoresistance at 2 K and 10 T is rather large (∼35%).
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