Fig. 1: The magnetoelastic effect in soft fibers.
From: Soft fibers with magnetoelasticity for wearable electronics
a Schematic of the fabrication process of the soft magnetic fibers. b Micro-CT image and c Schematics of the soft magnetic fiber. Scale bar: 0.4 mm. d Stress–strain curves of the soft magnetic fibers with 83 wt% magnetic concentration. e, f Vertical magnetic flux density (ΔB⊥) mapping of the soft magnetic fiber on south pole surface in the original state (e) and under a compressed pressure of 300 kPa (f). Scale bars: 0.24 mm. g Magnetic field variation of the soft magnetic fiber under applied stress on the south pole surface. h Magnetic hysteresis loop of the soft magnetic fiber in original state and in compressed state. i, j Schematics of the magnetic dipole distribution in soft magnetic fiber of initial state (i) and compressed state (j). k Schematic of the wavy chain model. l Performance comparison of the soft magnetic fibers with rigid metal alloys.
