Imaging magnetic vortex configurations in ferromagnetic nanotubes

Autor:	Wyss, M., Mehlin, A., Gross, B., Buchter, A., Farhan, A., Buzzi, M., Kleibert, A., Tütüncüoglu, G., Heimbach, F., Morral, A. Fontcuberta i, Grundler, D., Poggio, M.
Rok vydání:	2017
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. B 96, 024423 (2017)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.96.024423
Popis:	We image the remnant magnetization configurations of CoFeB and permalloy nanotubes (NTs) using x-ray magnetic circular dichroism photo-emission electron microscopy. The images provide direct evidence for flux-closure configurations, including a global vortex state, in which magnetization points circumferentially around the NT axis. Furthermore, micromagnetic simulations predict and measurements confirm that vortex states can be programmed as the equilibrium remnant magnetization configurations by reducing the NT aspect ratio. Comment: 14 pages, 4 figures, link to supplementary information
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1701.01685 Zobrazit plný text záznamu View this record from Arxiv