Jump to main content
Jump to site search

Issue 16, 2012
Previous Article Next Article

Stable single domain Co nanodisks: synthesis, structure and magnetism

Author affiliations

Abstract

Colloidal synthesis of morphologically stable oxide-free cobalt nanodisks (diameter ≈ 21 nm, thickness ≈ 12 nm) has been achieved. The hcp c-axis is found to be perpendicular to the flat side of the disk which is explained by surface energy considerations. Magnetic measurements and comparisons with simulations show that the nanodisks are single magnetic domains with a magnetisation oriented perpendicular to the plane of the disks and reaching that of bulk cobalt, and high anisotropy field. These disks are thus potential candidates for magnetic data storage, magnetic sensor arrays, and cheap permanent magnets.

Graphical abstract: Stable single domain Co nanodisks: synthesis, structure and magnetism

Back to tab navigation

Supplementary files

Publication details

The article was received on 21 Dec 2011, accepted on 15 Feb 2012 and first published on 14 Mar 2012


Article type: Paper
DOI: 10.1039/C2JM16751D
Citation: J. Mater. Chem., 2012,22, 8043-8047
  •   Request permissions

    Stable single domain Co nanodisks: synthesis, structure and magnetism

    M. Comesaña-Hermo, D. Ciuculescu, Z. Li, S. Stienen, M. Spasova, M. Farle and C. Amiens, J. Mater. Chem., 2012, 22, 8043
    DOI: 10.1039/C2JM16751D

Search articles by author

Spotlight

Advertisements