The Nanoflower-Like Morphology and Magnetism of As-Milled Ho(Ni_0.8Co_0.2)₃ Powders Prepared by HEBM

Abstract:

The morphology and magnetic properties of the Ho(Ni_0.8Co_0.2)_­3 crystalline and ball – milled intermetallic compounds are presented. The polycrystalline bulk compound crystallizes in the rhombohedral PuNi₃ - type of crystal structure and indicates ferrimagnetic arrangement with the Curie temperature of T_C = 48 ± 1 K, the helimagnetic temperature T_h = 26 ± 2 K with the total saturation magnetic moment of 7.78 µ_B/f.u. at 2 K. The use of the HEBM method leads to the formation of nanoflakes with typical thickness of less than 100 nm. The extended milling leads to the reduction in particles/crystallites size and in the emergence of the relatively small coercivity (H_C).

• Periodical: Solid State Phenomena (Volume 257)
• Pages: 76-80
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.257.76
• Online since: October 2016
• Authors: Anna Bajorek*, Clément Berger, Krystian Prusik, Marcin Wojtyniak, Grażyna Chełkowska
• Keywords: Ball-milling, Intermetallics, Magnetic Properties, Morphology, Nanomaterials

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