3D magnetic structure of domain walls in soft magnetic racetracks by MFM and X-ray microscopy

Póster presentado a la INTERMAG Conference - IEEE International Magnetics, celebrada on-line del 26 al 30 de abril de 2021.In plane magnetization stripes of soft magnetic alloys have been proposed as magnetic information storage devices. In these kind of systems, regions of uniform magnetization with opposite senses are separated by domain walls(DW), known as head-to-headortail-to-tail walls, that may have different structures depending on the width and thickness of the stripes. Usually, two types of DW are expected, known as transverse, for thin stripes, orvortex, for thick stripes. The work by Nguyenetal has shown that in stripes thicker than 60nm, a thirdty peofhead-to-head DWmay exist, the so called Landauwall, with a significantout-of-plane magnetization core that is not homogenous across the film thickness.Work supported by Spanish MINECO under grant PID2019-104604RB/AEI/10.13039/501100011033.Peer reviewe