Magnetic properties of ErMn2 single crystals |
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| Affiliation: | 1. Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland;2. International Laboratory of High Fields and Low Temperatures, Gajowicka 95, 53-529 Wrocław, Poland;3. Institut für Geowissenschaften der Universität, 55099 Mainz, Germany;1. Department of Geographical and Historical Studies, University of Eastern Finland, PL 111, 80101 Joensuu, Finland;2. Université Grenoble Alpes - Irstea - UR DTM, 2 rue de la Papeterie – BP 76, 38 402 Saint-Martin-d’Hères cedex, France and Finnish Environment Institute, PL 101, 80101 Joensuu, Finland;3. School of Forest Sciences, University of Eastern Finland, PL 111, 80101 Joensuu, Finland;1. University of Pécs, Faculty of Health Sciences, Institute of Emergency Care and Pedagogy of Health, 7621 Pécs, Vörösmarty Street 4, Hungary;2. University of Pécs, Department of Emergency Medicine, 7624 Pécs, Ifjúság Street 13, Hungary;1. School of Material Science and Engineering, North University of China, Taiyuan 030051, China;2. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, CAS, Ningbo 315201, China;3. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Material Technology and Engineering, CAS, Ningbo 315201, China |
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| Abstract: | Single crystals of the ErMn2 compound were grown by the Czochralski method from a levitated melt. The thermal dependence of the lattice parameters exhibits a magnetovolume effect along the a axis, a contraction for both the c axis and unit cell volume below 20 K. The thermal dependence of the electrical resistivity exhibits a magnetic transition at 23 K. A second transition occurs at 13 K. Moreover, for ρ(T) a negative curvature above the ordering temperature and a saturation effect above 200 K occurs. The magnetization in strong magnetic fields, the d.c. and a.c. magnetic susceptibilities measured along the principal crystallographic directions show ordering of the erbium moments to a spin-canted magnetic structure at about 15 K and a spin reorientation about 10 K. |
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