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arXiv · 1105.4946

On the magnetization textures in NiPd nanostructures

Jean-Yves Chauleau·Benjamin McMorran·Rachid Belkhou·Nicolas Bergeard·Tevfik Mentes·Miguel Nino·Andrea Locatelli·John Unguris·Stanislas Rohart·Jacques Miltat·Andre Thiaville
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Abstract

We have observed peculiar magnetization textures in Ni$_{80}$Pd$_{20}$ nanostructures using three different imaging techniques: magnetic force microscopy, photoemission electron microscopy under polarized X-ray absorption, and scanning electron microscopy with polarization analysis. The appearances of diamond-like domains with strong lateral charges and of weak stripe structures bring into evidence the presence of both a transverse and a perpendicular anisotropy in these nanostrips. This anisotropy is seen to reinforce as temperature decreases, as testified by a simplified domain structure at 150 K. A thermal stress relaxation model is proposed to account for these observations. Elastic calculations coupled to micromagnetic simulations support qualitatively this model.

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Jean-Yves Chauleau, Benjamin McMorran, Rachid Belkhou, Nicolas Bergeard, Tevfik Mentes, Miguel Nino, Andrea Locatelli, John Unguris, Stanislas Rohart, Jacques Miltat, Andre Thiaville. 2011-05-25. On the magnetization textures in NiPd nanostructures. https://doi.org/10.1103/physrevb.84.094416

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