RFe12-xTxCy, (R=Y,Er; T=V,Ti,Mo) alloys were prepared by rf induction melting and analyzed using neutron powder diffraction and superconducting quantum interference device (SQUID) measurements. Rietveld analysis of the neutron diffraction data indicates that V, Ti, and Mo atoms all prefer the 8i sites. The refined amount of carbon atoms found in the interstitial sites from neutron diffraction data is significantly less than the nominal carbon content. All samples have the easy direction along the c axis. The Er sublattice couples to the Fe sublattice antiferromagnetically. The average Fe site moments range from 1.3 to 2.8 μB. The anisotropies of the crystal structures are found to relate to both the rare earth atoms and the stabilizing transition metal atoms. The SQUID measurements show that all samples have a Curie temperature near 600 K.
Z. Hu et al., "Neutron Diffraction and Magnetic Studies of RFe₁₂₋ₓTₓCy (R=Y,Er; T=V,Ti,Mo) Alloys," Journal of Applied Physics, vol. 79, no. 8, pp. 5522-5524, American Institute of Physics (AIP), Apr 1996.
The definitive version is available at https://doi.org/10.1063/1.362297
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© 1996 American Institute of Physics (AIP), All rights reserved.
15 Apr 1996