Regensburg 2013 – scientific programme
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MA: Fachverband Magnetismus
MA 26: Magnetic Thin Films I of 2
MA 26.2: Talk
Wednesday, March 13, 2013, 09:45–10:00, H3
Stretchable Magnetoelectronics for Smart Skin Applications — •Michael Melzer1, Denys Makarov1, and Oliver G. Schmidt1,2 — 1Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany — 2Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainer Straße 70, 90107 Chemnitz, Germany
Realization of smart skins and interactive textiles fully relies on the development of flexible and stretchable electronics. Ideally, all components should be elastic and withstand many cycles of deformations without degrading in performance.
In this work, we introduce the world's first elastically stretchable spin valves [1], that outperform classical elements relying on giant magnetoresistive multilayers in terms of sensitivity (0.8% /Oe at 12 Oe), stretchability (up to 29%) and cyclic loading stability (>500 cycles). Their superior performance relies on the combination of random wrinkling and a unique periodic fracture mechanism, that introduces a highly stretchable meander-like structure into the functional magnetic nanomembranes. The possibility of a direct transfer of magnetic sensorics from rigid supports to soft membranes will be in the scope of the presentation. This renders magnetoelectronics to be fully integrated into stretchable electronics systems to equip them with magnetic functionalities. The work was supported in part by the German federal ministry of education and research (project Nanett; FKZ: 03IS2011).
[1] M. Melzer et al., Adv. Mat. DOI: 10.1002/adma.201201898 (2012).