Issue 17, 2016

Influence of the electrodeposition potential on the crystallographic structure and effective magnetic easy axis of cobalt nanowires

Abstract

Cobalt nanowires (NWs) have been synthesized by electrodeposition inside the pores of anodized aluminium oxide templates, at different values of applied deposition potential. The as-deposited NWs are parallel to one another and exhibit a high geometrical aspect ratio. The crystal structure of these NWs shows a strong dependence on the applied deposition potential during synthesis. X-ray diffraction indicates the predominance of hexagonal-closed-packed (HCP) phase with (002) texture at low applied deposition potentials, whereas a reorientation of the c-axis of the HCP structure is observed for high electrodeposition potentials. Moreover, for a given electrodeposition time, the length of the NWs also increases with the applied potential. As a result of these structural changes, a switch in the magnetic easy axis, from parallel to perpendicular to the NW axis, occurs depending on the applied potential. A simplified model is used to account for this reorientation of the effective magnetic anisotropy direction, which takes into account the interplay between shape anisotropy, magnetocrystalline anisotropy and interwire dipolar interactions.

Graphical abstract: Influence of the electrodeposition potential on the crystallographic structure and effective magnetic easy axis of cobalt nanowires

Article information

Article type
Paper
Submitted
15 Jan 2016
Accepted
16 Jan 2016
First published
28 Jan 2016

RSC Adv., 2016,6, 14266-14272

Influence of the electrodeposition potential on the crystallographic structure and effective magnetic easy axis of cobalt nanowires

M. I. Irshad, N. M. Mohamed, M. Z. Abdullah, M. S. M. Saheed, A. Mumtaz, M. Yasar, A. Yar, M. A. Zeeshan and J. Sort, RSC Adv., 2016, 6, 14266 DOI: 10.1039/C6RA01311B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements