Electron beam tuning of the magnetic anisotropy in Co/Cu(110) films

Robert Reeve, Shin Liang Chin, Klaus Peter Kopper, Adrian Ionescu, Crispin H W Barnes

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The 90° in-plane spin reorientation transition caused by residual gas adsorption in the Co/Cu(110) system has been investigated using Mott electron polarimetry. The system displays a 3-D growth mode, forming islands with a preferential axis of elongation along the [110] direction. The adsorption of CO at the step edges is found to change the net anisotropy of the system and bring about the change in the relaxed magnetization direction. By carefully limiting the duration of electron beam exposure, it has been shown that this spin rotation can also be observed using Mott polarimetry, where it manifests itself as variations in the secondary electron spin polarization. Extended exposure of the switched film to an electron beam can reverse the easy axis direction, allowing local tuning of the magnetic anisotropy in this system.

Original languageEnglish
Article number5772197
Pages (from-to)1554-1558
Number of pages5
JournalIEEE Transactions on Magnetics
Volume47
Issue number6 PART 1
DOIs
Publication statusPublished - Jun 2011
Externally publishedYes

Fingerprint

Polarimeters
Magnetic anisotropy
Electron beams
Tuning
Gas adsorption
Spin polarization
Electrons
Elongation
Magnetization
Anisotropy
Carbon Monoxide
Adsorption
Direction compound

Keywords

  • Adsorbates
  • catalysis
  • magnetic anisotropy
  • Mott polarimetry
  • spin-reorientation transition

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Reeve, R., Chin, S. L., Kopper, K. P., Ionescu, A., & Barnes, C. H. W. (2011). Electron beam tuning of the magnetic anisotropy in Co/Cu(110) films. IEEE Transactions on Magnetics, 47(6 PART 1), 1554-1558. [5772197]. https://doi.org/10.1109/TMAG.2011.2106484

Electron beam tuning of the magnetic anisotropy in Co/Cu(110) films. / Reeve, Robert; Chin, Shin Liang; Kopper, Klaus Peter; Ionescu, Adrian; Barnes, Crispin H W.

In: IEEE Transactions on Magnetics, Vol. 47, No. 6 PART 1, 5772197, 06.2011, p. 1554-1558.

Research output: Contribution to journalArticle

Reeve, R, Chin, SL, Kopper, KP, Ionescu, A & Barnes, CHW 2011, 'Electron beam tuning of the magnetic anisotropy in Co/Cu(110) films', IEEE Transactions on Magnetics, vol. 47, no. 6 PART 1, 5772197, pp. 1554-1558. https://doi.org/10.1109/TMAG.2011.2106484
Reeve R, Chin SL, Kopper KP, Ionescu A, Barnes CHW. Electron beam tuning of the magnetic anisotropy in Co/Cu(110) films. IEEE Transactions on Magnetics. 2011 Jun;47(6 PART 1):1554-1558. 5772197. https://doi.org/10.1109/TMAG.2011.2106484
Reeve, Robert ; Chin, Shin Liang ; Kopper, Klaus Peter ; Ionescu, Adrian ; Barnes, Crispin H W. / Electron beam tuning of the magnetic anisotropy in Co/Cu(110) films. In: IEEE Transactions on Magnetics. 2011 ; Vol. 47, No. 6 PART 1. pp. 1554-1558.
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