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MA: Fachverband Magnetismus
MA 25: Magnetic Imaging
MA 25.2: Vortrag
Mittwoch, 18. März 2015, 09:45–10:00, H 1012
X-ray imaging of curved magnetic nanomembranes — •Denys Makarov1, Robert Streubel1, Peter Fischer2, Florian Kronast3, and Oliver G. Schmidt1 — 1Institute for Integrative Nanosciences, IFW Dresden, 01069 Dresden, Germany — 2Center for X-ray Optics, Lawrence Berkeley National Laboratory, Berkeley CA 94720, USA — 3Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489 Berlin, Germany
Conventionally magnetic films and structures are fabricated on flat surfaces. The topology of curved surfaces has only recently started to be explored and leads to new fundamental physics and applied device ideas. Advancing in this field calls for the understanding of the magnetic responses of thin films on curved surfaces. Here, two basic geometries, i.e. hemi-spherical [1,2] and tubular [3-5], will be addressed. To enable the microscopic characterization of 3D architectures, we put forth the concept of magnetic soft x-ray tomography. This concept will be introduced and the angle- and layer-resolved imaging of 3D shaped tubular architectures [4,5] will be presented.
[1] T. C. Ulbrich et al., Phys. Rev. Lett. 96, 077202 (2006). [2] D. Makarov et al., Appl. Phys. Lett. 93, 153112 (2008). [3] E. J. Smith et al., Phys. Rev. Lett. 107, 097204 (2011). [4] R. Streubel et al., Nano Lett. 14, 3981 (2014). [5] R. Streubel et al., Adv. Mat. 26, 316 (2014).