Stretchable spin valves on elastomer membranes by predetermined periodic fracture and random wrinkling.

Melzer, Michael; Lin, Gungun; Makarov, Denys; Schmidt, Oliver G · Adv Mater · 2012

basic_science · Level V

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Abstract

The first highly stretchable and sensitive spin valve sensor on elastomeric membranes are demonstrated. The sensor elements exhibit stable GMR behavior up to tensile strains of 29% in in situ stretching experiments and show no fatigue over 500 loading cycles. This remarkable stretchability is achieved by a predetermined periodic fracture mechanism that creates a meander-like pattern upon stretching.

Medical subject headings