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Instruments / Technical Area	Publication Details	Published	Actions
I10-Beamline for Advanced Dichroism - scattering	Anatomy of skyrmionic textures in magnetic multilayers Wenjing Li , Iuliia Bykova , Shilei Zhang , Guoqiang Yu , Riccardo Tomasello , Mario Carpentieri , Yizhou Liu , Yao Guang , Joachim Gräfe , Markus Weigand , David M. Burn , Gerrit Van Der Laan , Thorsten Hesjedal , Zhengren Yan , Jiafeng Feng , Caihua Wan , Jinwu Wei , Xiao Wang , Xiaomin Zhang , Hongjun Xu , Chenyang Guo , Hongxiang Wei , Giovanni Finocchio , Xiufeng Han , Gisela Schütz Advanced Materials 8 DOI: 10.1002/adma.201807683 Diamond Proposal Number(s): [18898] Open Access Show Abstract ▼ Abstract: Room temperature magnetic skyrmions in magnetic multilayers are considered as information carriers for future spintronic applications. Currently, a detailed understanding of the skyrmion stabilization mechanisms is still lacking in these systems. To gain more insight, it is first and foremost essential to determine the full real-space spin configuration. Here, two advanced X-ray techniques are applied, based on magnetic circular dichroism, to investigate the spin textures of skyrmions in [Ta/CoFeB/MgO]n multilayers. First, by using ptychography, a high-resolution diffraction imaging technique, the 2D out-of-plane spin profile of skyrmions with a spatial resolution of 10 nm is determined. Second, by performing circular dichroism in resonant elastic X-ray scattering, it is demonstrated that the chirality of the magnetic structure undergoes a depthdependent evolution. This suggests that the skyrmion structure is a complex 3D structure rather than an identical planar texture throughout the layer stack. The analyses of the spin textures confirm the theoretical predictions that the dipole–dipole interactions together with the external magnetic field play an important role in stabilizing sub-100 nm diameter skyrmions and the hybrid structure of the skyrmion domain wall. Our combined X-ray-based approach opens the door for in-depth studies of magnetic skyrmion systems, which allows for precise engineering of optimized skyrmion heterostructures.	Feb 2019

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I10-Beamline for Advanced Dichroism - scattering

Anatomy of skyrmionic textures in magnetic multilayers