Magnetism of directly ordered Sm-Co clusters

B. Balamurugan, R. Skomski, X. Z. Li, G. C. Hadjipanayis, D. J. Sellmyer

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Sm-Co bulk alloys have shown superior permanent-magnet properties, but research on Sm-Co nanoparticles is challenging because of the need to control particle size, size-distribution, crystalline ordering, and phase purity. In the present study, a cluster-deposition method was used to produce Sm-Co nanoparticles having desired crystal structures without the requirement of subsequent high-temperature thermal annealing. Poorly crystallized SmCo 5 nanoparticles exhibit a low room-temperature coercivity of only 100 Oe, whereas crystalline SmCo 5 and Sm 2Co 17 nanoparticles show room-temperature coercivities of 2000 and 750 Oe, respectively. The direct synthesis of Sm-Co nanoparticles having sizes of less than 10 nm and a high degree of atomic ordering is an important step toward creating nanoparticle building blocks for permanent-magnets and other significant applications.

Original languageEnglish (US)
Article number07B527
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
StatePublished - Apr 1 2012

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nanoparticles
permanent magnets
coercivity
room temperature
purity
requirements
crystal structure
annealing
synthesis

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Balamurugan, B., Skomski, R., Li, X. Z., Hadjipanayis, G. C., & Sellmyer, D. J. (2012). Magnetism of directly ordered Sm-Co clusters. Journal of Applied Physics, 111(7), [07B527]. https://doi.org/10.1063/1.3677668

Magnetism of directly ordered Sm-Co clusters. / Balamurugan, B.; Skomski, R.; Li, X. Z.; Hadjipanayis, G. C.; Sellmyer, D. J.

In: Journal of Applied Physics, Vol. 111, No. 7, 07B527, 01.04.2012.

Research output: Contribution to journalArticle

Balamurugan, B, Skomski, R, Li, XZ, Hadjipanayis, GC & Sellmyer, DJ 2012, 'Magnetism of directly ordered Sm-Co clusters', Journal of Applied Physics, vol. 111, no. 7, 07B527. https://doi.org/10.1063/1.3677668
Balamurugan B, Skomski R, Li XZ, Hadjipanayis GC, Sellmyer DJ. Magnetism of directly ordered Sm-Co clusters. Journal of Applied Physics. 2012 Apr 1;111(7). 07B527. https://doi.org/10.1063/1.3677668
Balamurugan, B. ; Skomski, R. ; Li, X. Z. ; Hadjipanayis, G. C. ; Sellmyer, D. J. / Magnetism of directly ordered Sm-Co clusters. In: Journal of Applied Physics. 2012 ; Vol. 111, No. 7.
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