We have observed peculiar magnetization textures in Ni80Pd20 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.
@article{arxiv.1105.4946,
title = {On the magnetization textures in NiPd nanostructures},
author = {Jean-Yves Chauleau and Benjamin McMorran and Rachid Belkhou and Nicolas Bergeard and Tevfik Mentes and Miguel Nino and Andrea Locatelli and John Unguris and Stanislas Rohart and Jacques Miltat and Andre Thiaville},
journal= {arXiv preprint arXiv:1105.4946},
year = {2015}
}