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.
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.
|Keywords:||Gold, Focused ion beam technology, Doping, Ferromagnetism, Ion beams.|
|Full text:||(VoR) Version of Record|
Download PDF (896Kb)
|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
|Look up in GoogleScholar|