Magnetic structure of the Mn5Si3-type Er5Ge3 compound |
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| Authors: | A.V. Morozkin O. Isnard P. Henry P. Manfrinetti |
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| Affiliation: | 1. Department of Chemistry, Moscow State University, Leninskie Gory, House 1, Building 3, Moscow, GSP-2, 119992, Russia;2. Institute Laue-Langevin, 6 Rue J. Horowitz , 38042 Grenoble, France;3. Laboratoire de Cristallographie du CNRS, Université J.Fourier, BP166X, 38042 Grenoble, France;4. Dipartimento di Chimica, Università di Genova, Via Dodecaneso 31, 16146 Genova, Italy |
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| Abstract: | The Er5Ge3 compound (Mn5Si3-type, hP16, P63/mcm) at 4 K shows magnetic ordering of the antiferromagnetic type. Its magnetic structure consists of sine modulated collinear magnetic moments of Er that are parallel to the c axis (with a propagation vector k=[0 0 ±0.3]). This corresponds to the magnetic unit cell (a a 10c), the values of the magnetic moment of the Er atoms being, as a general formula, Mz≈M0 cos [2π(Z–1/4)(1–kZ)], with M0=9.2(2) μB at 4 K. |
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| Keywords: | Rare earth intermetallics Erbium germanide Neutron diffraction study Magnetic structure |
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