Ordering and magnetic properties of nanostructured CoPt particles

S. V. Komogortsev; R. S. Iskhakov; A. A. Zimin; E. Yu. Filatov; S. V. Korenev; Yu. V. Shubin; E. V. Eremin; G. Yu. Yurkin

doi:10.3103/S1062873817030182

Ordering and magnetic properties of nanostructured CoPt particles

Authors: Komogortsev S.V.¹, Iskhakov R.S.¹, Zimin A.A.², Filatov E.Y.³, Korenev S.V.³, Shubin Y.V.³, Eremin E.V.¹, Yurkin G.Y.¹
Affiliations:
1. Kirensky Institute of Physics, Siberian Branch
2. Siberian Federal University
3. Nikolaev Institute of Inorganic Chemistry, Siberian Branch
Issue: Vol 81, No 3 (2017)
Pages: 298-300
Section: Proceedings of the “OMA-19”, “ODPO-19”
URL: https://journal-vniispk.ru/1062-8738/article/view/184995
DOI: https://doi.org/10.3103/S1062873817030182
ID: 184995

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Abstract

The kinetics of ordering in nanostructured CoPt particles is investigated. The low activation energy (58 ± 2 kJ/mol) of the ordering process indicates that the kinetics of ordering is not limited by bulk diffusion. Coercivity grows along with the degree of ordering and reaches its maximum value of 14.2 kOe upon the complete ordering of CoPt alloy with a crystallite size of no more than that of a single domain.