We present a study on the static magnetic properties of individual GaAs-Fe33Co67 core-shell nanorods. X-ray Magnetic Circular Dichroism combined with Photoemission Electron Microscopy (XMCD-PEEM) and Scanning Transmission X-ray Microscopy (STXM) were used to investigate the magnetic nanostructures. The magnetic layer is purposely designed to establish a magnetic easy axis neither along a high symmetry nor mirror axes to promote 3D magnetic helical order on the curved surface. In practice, two types of magnetic textures with in-plane magnetization were found inside the nanostructures' facets: magnetic domains with almost longitudinal or almost perpendicular magnetization with respect to the axis of the tube. We observe that a magnetic field applied perpendicular to the long axis of the nanostructure can add an azimuthal component of the magnetization to the previously almost longitudinal magnetization.
@article{arxiv.2408.15036,
title = {Magnetization patterns in $\text{GaAs}$-$\text{Fe}_{\text{33}}\text{Co}_{\text{67}}$ core-shell nanorods},
author = {Anastasiia Korniienko and Alexis Wartelle and Matthias Kronseder and Viola Zeller and Michael Foerster and Miguel Ángel Niño and Sandra Ruiz-Gomes and Muhammad Waqas Khaliq and Markus Weigand and Sebastian Wintz and Christian H. Back},
journal= {arXiv preprint arXiv:2408.15036},
year = {2024}
}