Abstract

Abstract Influence of Pd–Ni substitution on the formation of magnetic phases in the tetragonal U(Ni1−xPdx)2Si2 system and the corresponding magnetic phase diagrams are presented. The single crystals of two different substitutions x=0.15 and 0.10 were grown and detailed studies by neutron diffraction were performed in horizontal magnetic fields up to B=6 T . Both compounds order antiferromagnetically (AF) and exhibit three different AF structures below the Neel temperature. All three structures are formed by ferromagnetic basal planes stacked along c-axis with different q =(0,0,q z ) propagation. For x=0.10, the co-existence of two magnetic phases in the ground-state was observed.

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