As electronic devices shrink deep into the nano-scale, low-resistivities become essential. Simply put, electrons scatter off surfaces, and surfaces are closer together in small devices. Mazin Maqableh of IRG-3 has worked with Professors Stadler and Victora to develop ultra-small (10nm) magnetic sensors and associated electrodes with low resistivities enabled by very smooth surfaces. These resistivities are 10-1000x lower than both predictions and those found in nanowires made by other means. These magnetic sensors had high signals,, 25 W total resistance, and high switching currents that met or exceeded all parameters of competing sensors, which are approximately 10 x larger.