Fig. 1: Concept of device and its performance.
From: Unpinning the magnetic interface between 2D materials and NiFe for ultra-low coercivity spin valves
a Comparison of coercivity values at room temperature for various VMDs extracted from the literature, along with the intrinsic coercivity of their respective ferromagnetic contacts. The coercivity of our device, determined by MOKE measurements, is highlighted in red. (inset) corresponding comparison at low temperatures, where the coercivity of our device is highlighted in red and extracted from magnetoresistance measurements conducted at 10 K. The numerical labels correspond to the reference numbers listed in Supplementary Table S1, which provides detailed information on each device and its measurement conditions. b schematic of the UCD deposition process, c illustration showing graphene in contact with both electrodes, d Raman mapping of suspended graphene, e representative Raman spectra of suspended and supported graphene, shown in blue and red, respectively, and f SEM image of suspended graphene covered by a NiFe thin film.
