Magnetic Properties of Tb(Ni_{1-x}Fe_{x})_{3} (x=0.2, 0.6) Crystalline Compounds and Powders

• Authors: K. Ociepka , A. Bajorek , A. Chrobak , G. Chełkowska , K. Prusik
• Languages of publication: EN

Abstracts

EN

In the paper we present and discuss magnetic properties of the Tb(Ni_{1-x}Fe_{x})_{3} (x=0.2, 0.6) crystalline compounds and their ball-milled powders. The investigated samples are polycrystalline and crystallize in the rhombohedral PuNi_{3} type of crystal structure. The Curie temperature of the material seems to be independent of particle size and is constant. The coercivity depends on the amount of iron dopant. The saturation magnetization decreases after mechanical grinding which is connected with the reduction in particle size. After 6 h milling time the SEM results show the presence of nanoflakes with thickness up to 100 nm or even smaller. Moreover, the pulverization leads to the observed decrease of magnetocaloric effect.

Keywords

EN

81.20.Wk; 81.07.Bc; 71.20.Lp; 75.30.-m

Discipline

• 81.20.Wk: Machining, milling
• 71.20.Lp: Intermetallic compounds
• 81.07.Bc: Nanocrystalline materials
• 75.30.-m: Intrinsic properties of magnetically ordered materials(for critical point effects, see 75.40.-s; for magnetotransport phenomena, see 75.47.-m)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 180-181

Dates

published

2014-07

Contributors

author

K. Ociepka

• A. Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

A. Bajorek

• A. Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

A. Chrobak

• A. Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

G. Chełkowska

• A. Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

K. Prusik

• Institute of Materials Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.126.180