Skip to main content

Research Repository

Advanced Search

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

King, J.A.; Ganguly, A.; Burn, D.M.; Pal, S.; Sallabank, E.A.; Hase, T.P.A.; Hindmarch, A.T.; Barman, A.; Atkinson, D.

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


Authors

A. Ganguly

D.M. Burn

S. Pal

E.A. Sallabank

T.P.A. Hase

A. Barman



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.

Citation

King, J., Ganguly, A., Burn, D., Pal, S., Sallabank, E., Hase, T., …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), Article 242410. https://doi.org/10.1063/1.4883860

Journal Article Type Article
Acceptance Date Jun 4, 2014
Online Publication Date Jun 18, 2014
Publication Date Jun 16, 2014
Deposit Date Aug 26, 2014
Publicly Available Date Sep 9, 2014
Journal Applied Physics Letters
Print ISSN 0003-6951
Electronic ISSN 1077-3118
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 104
Issue 24
Article Number 242410
DOI https://doi.org/10.1063/1.4883860
Keywords Gold, Focused ion beam technology, Doping, Ferromagnetism, Ion beams.

Files

Published Journal Article (917 Kb)
PDF

Copyright 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







You might also like



Downloadable Citations