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Article Dans Une Revue Materials Research Letters Année : 2023

Oscillatory buckling reversal of a weak stripe magnetic texture

Michel Hehn
Brice Sarpi
S. Petit-Watelot
François Montaigne
R. Belkhou
Daniel Lacour

Résumé

By combining volume sensitive high resolution Magnetic Force Microscopy with surface sensitive X-ray Photoemission Electron Microscopy, we resolved the depth profile of a weak stripe magnetic texture and its evolution upon in-plane magnetization reversal. In contrast to previous reports, we show that the conventional weak stripe texture undergoes a well-defined undulation while the magnetic field is reversed to negative after in plane positive saturation. This transformation is strongly impacting the flux closure caps domains and a staggered Néel caps texture appears. Thanks to quantitative agreement with micro-magnetic simulations, we demonstrate that the existence of both the instability and the staggered Néel caps is intrinsic in negative applied field after positive in plane saturation. This reversal mode is characterized by a checker board pattern of alternating surface magnetic charges and by a longitudinal modulation of the in-plane component of magnetization similar to the oscillatory buckling reversal mode reported in elongated soft magnetic nanostructures
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Licence : CC BY - Paternité

Dates et versions

hal-04244284 , version 1 (17-10-2023)

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Paternité

Identifiants

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Kosseila Ait-Oukaci, Daniel Stoeffler, Michel Hehn, M. Grassi, Brice Sarpi, et al.. Oscillatory buckling reversal of a weak stripe magnetic texture. Materials Research Letters, 2023, 11 (9), pp.789-795. ⟨10.1080/21663831.2023.2238010⟩. ⟨hal-04244284⟩
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