The preferred in-plane orientation of the magnetization in Co thin films can be switched to out-of-plane either by decreasing the thickness of the Co layer at fixed temperature, or the thickness of the Au cap layer, or by decreasing the temperature at fixed layer thickness. Recently, we have characterized the Co/Au system grown in-situ on a W(110) single crystal and found a novel behaviour, where a SRT can be observed over a wider range of Co thicknesses, depending on temperature and cap-thickness. Furthermore, we found a competing situation where the system was possible to stabilize both with an in-plane and an out-of-plane remanent magnetization for very thin Co layers. Our recent in-situ XMCD work indicates (a) for thick Co films the magnetization remained fully in-plane upon capping with Au, for all Au cap thicknesses. In the thin limit of Co thickness (case b) immediately after capping with Au the magnetization turned fully out-of-plane, and the overall magnetization increased upon further adding of Au. XMCD results will be discussed regarding the magnitude of magnetic moments, and especially on how the orbital moment varies in all cases which we studied. In short our results indicate that in the case (a) no variation of the orbital moment took place upon reorientation, in contrast to case (b). These observations reveal a more subtle dependence of the magnetic energies on the real space structure and add novel possibilities in order to create novel canted magnetic phases not observed earlier by tuning the growth parameters of this system, beyond what is reported in the literature.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.