Cookies

We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.


Durham Research Online
You are in:

Local control of magnetic damping in ferromagnetic/non-magnetic bilayers by interfacial intermixing induced by focused ion-beam irradiation.

King, J.A. and Ganguly, A. and Burn, D.M. and Pal, S. and Sallabank, E.A. and Hase, T.P.A. and Hindmarch, A.T. and Barman, A. and Atkinson, D. (2014) 'Local control of magnetic damping in ferromagnetic/non-magnetic bilayers by interfacial intermixing induced by focused ion-beam irradiation.', Applied physics letters., 104 (24). p. 242410.

Abstract

The influence of interfacial intermixing on the picosecond magnetization dynamics of ferromagnetic/non-magnetic thin-film bilayers was studied. Low-dose focused-ion-beam irradiation was used to induce intermixing across the interface between a 10 nm Ni 81Fe19 layer and a 2–3 nm capping layer of either Au or Cr. Time-resolved magneto-optical Kerr effect was used to study magnetization dynamics as a function of ion-beam dose. With an Au cap, the damping of the un-irradiated bilayer was comparable with native Ni 81Fe19 and increased with increasing ion dose. In contrast, for Ni 81Fe19/Cr the damping was higher than that for native Ni 81Fe19, but the damping decreased with increasing dose.

Item Type:Article
Keywords:Gold, Focused ion beam technology, Doping, Ferromagnetism, Ion beams.
Full text:(VoR) Version of Record
Download PDF
(896Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1063/1.4883860
Publisher statement:© 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 104, 242410 (2014) and may be found at http://dx.doi.org/10.1063/1.4883860
Date accepted:04 June 2014
Date deposited:09 September 2014
Date of first online publication:18 June 2014
Date first made open access:No date available

Save or Share this output

Export:
Export
Look up in GoogleScholar