Abstract:
:This article presents a study whose purpose is to elucidate the damage effects in thin films on their magnetic response. Co40Fe40B20 and Ni80Fe20 films of different nanometric thicknesses were stretched by more than 10% and in situ probed by atomic force microscopy measurements to determine their irreversible mechanical behavior (multi-cracking, buckling). Once these phenomena have been well identified, magnetic behavior of these stretched systems has been studied by ferromagnetic resonance to measure resulting magnetic anisotropy and damping evolutions. All of these experimental studies show that the magnetic properties are mainly affected by the stresses generated during the damage but not by the local discontinuities induced by the numerous cracks and buckles. This is in particular confirmed by the almost zero sensitivity to the damage of the magnetic properties of Ni80Fe20 alloy which is known for its vanishing magnetostriction.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Merabtine S,Zighem F,Garcia-Sanchez A,Gunasekaran V,Belmeguenai M,Zhou X,Lupo P,Adeyeye AO,Faurie Ddoi
10.1038/s41598-018-32149-zsubject
Has Abstractpub_date
2018-09-12 00:00:00pages
13695issue
1issn
2045-2322pii
10.1038/s41598-018-32149-zjournal_volume
8pub_type
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