Magnetic Anisotropy of a Single Cobalt Nanoparticle

Preprint

3 December 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0012029

Abstract

Using a new microSQUID set-up, we investigate magnetic anisotropy in a single 1000-atoms cobalt cluster. This system opens new fields in the characterization and the understanding of the origin of magnetic anisotropy in such nanoparticles. For this purpose, we report three-dimensional switching field measurements performed on a 3 nm cobalt cluster embedded in a niobium matrix. We are able to separate the different magnetic anisotropy contributions and evidence the dominating role of the cluster surface.

Keywords

MAGNETIC ANISOTROPY
COBALT NANOPARTICLE
COBALT CLUSTER
SINGLE COBALT
SYSTEM OPENS
NANOPARTICLE
EMBEDDED
NIOBIUM

All Related Versions

Version 1, 2000-12-03, ArXiv
Published version: Physical Review Letters, 86 (20), 4676.

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