Fig. 2: The structure and magnetic properties of flexible GMR devices.
From: An ultrathin, rapidly fabricated, flexible giant magnetoresistive electronic skin
a Schematic of the GMR spin valve structure deposited on a Si substrate with a synthetic antiferromagnetic layer. b Optical photographs of the flexible GMR sensor array. c GMR sensor array placed on a human palm. d Magnetoresistance curves of a GMR sensor on silicon and PI substrates. e Magnetoresistance curves of the GMR sensor before and after delamination. f Atomic force microscopy image showing the surface roughness of the spin-coated polyimide on the Si substrates, exhibiting an average roughness of 0.574 nm at 6 different points. g Hysteresis loop of the GMR spin valve film
