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We explored the crystal structure, magnetic, and transport properties of UNiX₂ (X = Ge, Si) materials, which were prepared by a conventional metallurgical technique and by rapid solidification - splat cooling. The UNiSi₂ splat is mostly single phase, containing only small traces of a minority phase. Magnetic and electrical properties of the splat resemble properties of samples, which were prepared by conventional methods, exhibiting a ferromagnetic transition at about 91 K and similar temperature dependence of resistivity. The coercive field of μ₀H_c=4.25 T is much enhanced due to the magnetic anisotropy introduced by the sample preparation technique. The Barkhausen jumps were observed on the hysteresis loop. Magnetization of the sample does not saturate in fields up to μ₀H=9 T. The phase structure of UNiGe₂ splat is not completely solved and will be subject of our study in future. Our preliminary results indicate the presence of completely new phase with tetragonal crystal structure and antiferromagnetic ordering below 54 K.
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994-996
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2017-04
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- Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
- Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
- Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
- Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
- Faculty of Humanities and Natural Sciences, University of Prešov, 17. novembra 1, SK 081 16 Prešov, Slovakia
author
- Faculty of Humanities and Natural Sciences, University of Prešov, 17. novembra 1, SK 081 16 Prešov, Slovakia
author
- Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
- Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
- Department of Condensed Matter Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
author
- Department of Condensed Matter Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
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bwmeta1.element.bwnjournal-article-appv131n4125kz