Control of magnetoelastic coupling in Ni/Fe multilayers using He<sup>+</sup> ion irradiation
نویسندگان
چکیده
This study reports the effects of post-growth He + irradiation on magneto-elastic properties a Ni/Fe multi-layered stack. The progressive intermixing caused by at interfaces multilayer allows us to tune saturation magnetostriction value with increasing fluences and even induce reversal sign magnetostrictive effect. Additionally, critical fluence which absolute is dramatically reduced identified. Therefore, insensitivity strain magnetic stack nearly reached, as required for many applications. All above-mentioned are attributed combination negative sputtered Ni Fe layers positive x 1− alloy intermixed interfaces, whose contribution gradually increased irradiation. Importantly, does not alter layer polycrystalline structure, confirming that ion an excellent tool samples. An alternative class spintronic devices can be envisioned material treatment able arbitrary change ion-induced “magnetic patterning.”
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2022
ISSN: ['1520-8842', '0003-6951', '1077-3118']
DOI: https://doi.org/10.1063/5.0107942