Selective Modification of Magnetic Properties of Co_1 /Au/Co_2/Au Multilayers by He Ion Bombardment

• Authors: M. Urbaniak , F. Stobiecki , D. Engel , B. Szymański , A. Ehresmann
• Languages of publication: EN

Abstracts

EN

We show that in a [Co_1/Au/Co_2/Au]_4 multilayer, where Co_{1(2)} denote Co layers of different thicknesses, a 10 keV He-ion bombardment with a 6×10^{14} ions cm^{-2} dose leads to changes of the easy direction from out-of-plane to in-plane in the thicker Co layers (t_{Co2} = 1 nm) while the perpendicular anisotropy of the thinner Co layers (t_{Co1} = 0.6 nm) is preserved. The investigated multilayers were obtained by sputtering and the thickness of the Au layers (t_{Au} = 4 nm) ensured that a direct coupling between the Co layers (through pinholes) and Ruderman-Kittel-Kasuya-Yosida-like interactions were negligible.

Keywords

EN

61.80.Jh; 75.47.De; 75.70.Cn

Discipline

• 75.70.Cn: Magnetic properties of interfaces (multilayers, superlattices, heterostructures)
• 61.80.Jh: Ion radiation effects(for ion implantation, see 61.72.U-)
• 75.47.De: Giant magnetoresistance

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 326-328

Dates

published

2009-01

Contributors

author

M. Urbaniak

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

F. Stobiecki

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

D. Engel

• Department of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, D-34132 Kassel, Germany

author

B. Szymański

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

A. Ehresmann

• Department of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, D-34132 Kassel, Germany

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Identifiers

DOI

10.12693/APhysPolA.115.326