Ion irradiation of Co/Pt multilayer films

M. J. Bonder, N. D. Telling, P. J. Grundy, C. A. Faunce, T. Shen, V. M. Vishnyakov

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This article describes a microstructural and magnetic investigation of the modification of Co/Pt multilayer films by Ar ion irradiation which results in a change of the orientation of the magnetization from perpendicular to the film plane to the in-plane direction. Transmission electron microscopy observation confirms the general structure of the as-deposited samples and correlates with the x-ray reflectivity measurements in showing the eventual mixing of the layers and a large increase in grain size caused by the irradiation.TRIM (transport of ions in matter) calculations show that large numbers of recoils are placed outside the individual layers and in the adjacent layers on irradiation. This signifies considerable roughening of the interfaces and mixing in the multilayer structure. Magnetic measurements and magnetic force microscopy observations confirm the decrease of perpendicular anisotropy and the changes of the magnetization direction from the perpendicular direction to an in-plane direction after irradiation.

LanguageEnglish
Pages7226-7228
Number of pages3
JournalJournal of Applied Physics
Volume93
Early online date9 May 2003
DOIs
Publication statusPublished - 15 May 2003
Externally publishedYes

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ion irradiation
irradiation
magnetic force microscopy
laminates
microscopy
reflectance
magnetization
anisotropy
ions
x rays

Cite this

Bonder, M. J., Telling, N. D., Grundy, P. J., Faunce, C. A., Shen, T., & Vishnyakov, V. M. (2003). Ion irradiation of Co/Pt multilayer films. Journal of Applied Physics, 93, 7226-7228. https://doi.org/10.1063/1.1557311
Bonder, M. J. ; Telling, N. D. ; Grundy, P. J. ; Faunce, C. A. ; Shen, T. ; Vishnyakov, V. M. / Ion irradiation of Co/Pt multilayer films. In: Journal of Applied Physics. 2003 ; Vol. 93. pp. 7226-7228.
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Bonder, MJ, Telling, ND, Grundy, PJ, Faunce, CA, Shen, T & Vishnyakov, VM 2003, 'Ion irradiation of Co/Pt multilayer films', Journal of Applied Physics, vol. 93, pp. 7226-7228. https://doi.org/10.1063/1.1557311

Ion irradiation of Co/Pt multilayer films. / Bonder, M. J.; Telling, N. D.; Grundy, P. J.; Faunce, C. A.; Shen, T.; Vishnyakov, V. M.

In: Journal of Applied Physics, Vol. 93, 15.05.2003, p. 7226-7228.

Research output: Contribution to journalArticle

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Bonder MJ, Telling ND, Grundy PJ, Faunce CA, Shen T, Vishnyakov VM. Ion irradiation of Co/Pt multilayer films. Journal of Applied Physics. 2003 May 15;93:7226-7228. https://doi.org/10.1063/1.1557311