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Stretchable Spin Valves on Elastomer Membranes by Predetermined Periodic Fracture and Random Wrinkling
Author(s) -
Melzer Michael,
Lin Gungun,
Makarov Denys,
Schmidt Oliver G.
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201201898
Subject(s) - elastomer , materials science , fracture (geology) , membrane , composite material , spin (aerodynamics) , ultimate tensile strength , nanotechnology , mechanical engineering , engineering , genetics , biology
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.