Magnetic Properties of TbNi1-xAuxIn Compounds

M. Bałanda a, B. Penc b, S. Baran b, T. Jaworska-Gołąb b, A. Arulraj c, and A. Szytuła b, a H. Niewodniczański Institute of Nuclear Physics, PAS, Radzikowskiego 152, 31-342 Kraków, Poland b M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland c BENSC, Hahn-Meitner Institute, Glienicker Str. 100, 14-109 Berlin-Wannsee, Germany

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Polycrystalline samples of TbNi1-xAuxIn for x = 0.1, 0.2, 0.4, 0.6 and 0.8 were prepared and studied by powder X-ray and neutron diffraction and ac magnetic susceptibility measurements. These compounds crystallize in the hexagonal ZrNiAl-type structure. With increasing Au content a change in the magnetic structure is observed. For x = 0.1, 0.2 and 0.4 the magnetic order is described by the propagation vector k = (1/2, 0, 1/2) while for x = 0.8 by k = (0, 0, 1/2). Between 1.5 K and the Néel temperature the magnetic order is stable.

DOI: 10.12693/APhysPolA.115.174 PACS numbers: 71.20.Lp, 75.25.+z, 75.50.Eea