Magnetic Properties of the RCoSn (R=Tb-Er) and RRhGe (R=Ce, Nd) Compounds

W. Bażelaa, J. Leciejewiczb, K. Małetkac, A. Szytuład and A. Zygmunte aInstitute of Physics, Technical University of Cracow, Podchorążych 1, 30-084 Kraków, Poland bInstitute of Nuclear Chemistry and Technology, Dorodna 16, 03-169 Warszawa, Poland cInstitute of Atomic Energy, Otwock-Świerk, Poland dInstitute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland eW. Trzebiatowski Institute of Low Temperatures and Structural Research, Polish Academy of Sciences, Okólna 2, 30-059 Wrocław, Poland

Received: October 1, 1993

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Magnetic properties of orthorhombic RCoSn (R = Tb-Er) and RRhGe (R = Ce,Nd) (of the TiNiSi-type of crystal structure), were studied by magnetometric and neutron diffraction methods. All RTX compounds order antiferromagnetically at low temperatures. The magnetic structure of TbCoSn and HoCoSn is sine-wave-modulated with the wave vectors k1 = (0, 0.25, 0.11) and k2 = (0, 0.333, 0), respectively. The magnetic structures of CeRhGe and NdRhGe compounds are collinear (C mode). Magnetic moments of 1.4(2) and 2.0(2) μB localized respectively on Ce and Nd ions, are aligned along the a-axis.

DOI: 10.12693/APhysPolA.85.859 PACS numbers: 75.25.+z