Structure and magnetic properties of Co-W clusters produced by inert gas condensation

TitleStructure and magnetic properties of Co-W clusters produced by inert gas condensation
Publication TypeJournal Article
Year of Publication2012
AuthorsGolkar F, Kramer MJ, Zhang Y, McCallum RW, Skomski R, Sellmyer DJ, Shield JE
Journal TitleJournal of Applied Physics
Volume111
Pages07b524
Date Published04
Type of ArticleArticle
ISBN Number0021-8979
Accession NumberWOS:000303282400221
Keywordsnanoparticles
Abstract

In this article, inert-gas condensation was used to synthesize Co-W clusters. The formation, structure, and magnetic properties of the clusters were investigated. Sub-10-nm clusters were obtained, and the structures and average sizes were strongly dependent on sputtering power. At low sputtering powers, the clusters were predominantly amorphous, while, at high sputtering power, the clusters were crystalline. X ray diffraction and transmission electron microscopy revealed clusters with hcp structure at high sputtering power. The magnetic properties were dependent on the sputtering power and temperature, with the highest coercivity of 810 Oe at 10 K for high sputtering power. (C) 2012 American Institute of Physics. [doi:10.1063/1.3676425]

URL<Go to ISI>://WOS:000303282400221
DOI10.1063/1.3676425
Alternate JournalJ. Appl. Phys.