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Title: Study of morphology and magnetic properties of the HoNi{sub 3} crystalline and ball-milled compound

The morphology and magnetic properties of the HoNi{sub 3} crystalline and ball-milled intermetallic compounds are presented. The polycrystalline HoNi{sub 3} bulk compound crystallizes in the rhombohedral PuNi{sub 3} — type of crystal structure and indicates ferrimagnetic arrangement with the Curie temperature of T{sub C} = 57 ± 2 K, the helimagnetic temperature T{sub h} = 23 ± 2 K with the total saturation magnetic moment of 6.84 μ{sub B}/f.u. at 2 K. The use of the ball-milling method leads to the formation of HoNi{sub 3} nanoflakes with typical thickness of less than 100 nm prone to agglomeration upon milling. The increase of grinding duration leads to the reduction in crystallite size, which was confirmed by various complementary microscopical and diffraction studies. Moreover, the increase in milling duration results in the emergence of the relatively small coercivity (H{sub C}), remanence (M{sub r}) and a variation of the saturation magnetization (M{sub S}). - Graphical abstract: Display Omitted - Highlights: • The ball-milling method exhibits significant potential for producing RT{sub 3} nanopowders. • The AFM method was used for the first time in analysis of R–T nanoflakes morphology. • HoNi{sub 3} compound forms polycrystalline and textured nanoflakes evolving upon milling. • The decreasemore » in crystallite size via grinding is confirmed by XRD, TEM and AFM. • The magnetic parameters were sensitive to the extension of pulverization b.« less
Authors:
 [1] ;  [2] ;  [1] ;  [2] ;  [3] ;  [1] ;  [2] ;  [2] ;  [1] ;  [2]
  1. A. Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice (Poland)
  2. (Poland)
  3. Institute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów (Poland)
Publication Date:
OSTI Identifier:
22476050
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 101; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMIC FORCE MICROSCOPY; CURIE POINT; HOLMIUM COMPOUNDS; INTERMETALLIC COMPOUNDS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MAGNETIZATION; MICROSTRUCTURE; NANOSTRUCTURES; NICKEL COMPOUNDS; POLYCRYSTALS; RARE EARTH ALLOYS; TEMPERATURE RANGE 0013-0065 K; THICKNESS; TRANSMISSION ELECTRON MICROSCOPY; TRIGONAL LATTICES; X-RAY DIFFRACTION