MR of the NiO_x/Pt NW devices at the LRS (a) and HRS (b) with applied magnetic fields parallel and perpendicular to the NW axis; M–H curves of the NiO_x/Pt NW arrays at the HRS and LRS with applied magnetic fields parallel (c) and perpendicular (d) to the NW axis.^[92] Reproduced by permission of The Royal Society of Chemistry.