Tuning Perpendicular Anisotropy Gradient in Co/Pd Multilayers by Ion Irradiation
arXiv:1408.1659 · doi:10.1063/1.4893569
Abstract
The tunability of Ar+ ion irradiation of Co/Pd multilayers has been employed to create depth-dependent perpendicular anisotropy gradients. By adjusting the Ar+ kinetic energy and fluence, the depth and lateral density of the local structural modification are controlled. First-order reversal curve analysis through X-ray magnetic circular dichroism and conventional magnetometry studies show that the local structural damage weakens the perpendicular anisotropy near the surface, leading to a magnetization tilting towards the in-plane direction. The ion irradiation method is complementary to, and may be used in conjunction with, other synthesis approaches to maximize the anisotropy gradient.
17 pages, 4 figures, 1 table
References in corpus (6)
- Quantitative Decoding of Interactions in Tunable Nanomagnet Arrays Using First Order Reversal Curves
- Anisotropy Dependence of Irreversible Switching in Fe/SmCo and FeNi/FePt Exchange Spring Magnet Films
- Vertically Graded Anisotropy in Co/Pd Multilayers
- Control of interlayer exchange coupling in Fe/Cr/Fe trilayers by ion beam irradiation
- Direct Observation of Magnetic Gradient in Co/Pd Pressure-Graded Media
- Deposition Order Dependent Magnetization Reversal in Pressure Graded Co/Pd films
Cited by in corpus (4)
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- Ion irradiation and implantation modifications of magneto-ionically induced exchange bias in Gd/NiCoO
- Controlling magnetic configuration in soft-hard bilayers probed by polarized neutron reflectometry
- Effective anisotropy gradient in pressure graded [Co/Pd] multilayers