Magnetism of single-crystalline Co nanorods

K. Soulantica, F. Wetz, J. Maynadí, Andrea Falqui, R. P. Tan, T. Blon, B. Chaudret, M. Respaud*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

We report on the synthesis and preparation of oriented nanomaterials of single crystalline metallic Co nanorods of 6 nm in diameters and two different aspect ratios (7 and 15). They display optimized magnetic properties, with a spontaneous magnetization just below the bulk one, and large coercive fields (up to 6.5 kOe at 300 K) as a result of coherent switching (i.e., Stoner and Wohlfarth mechanism). We measured a strong effective anisotropy very close to the expected value resulting from the sum of shape and magnetocrystalline contributions.

Original languageEnglish (US)
Article number152504
JournalApplied Physics Letters
Volume95
Issue number15
DOIs
StatePublished - Oct 22 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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