Tag Archives: magnetoresistance

Allegro MicroSystems had introduced 1MHz bandwidth current sensors that can measure hundreds of amps – the first fruit of its acquisition of Crocus Technologies. The technology is tunneling magnetoresistance, and the sensors are intended to sit over the current-carrying PCB track to be measured. Output is a voltage linearly proportional to the current, responding within 300ns. There are two base ...

German scientists have discovered giant magnetoresistance – the effect used in hard drive read heads – in niobium phosphide. They also identified graphene-like carriers in the 3D material. “Until now, the computer industry has used various materials stacked on top of each other in a filigree structure to achieve this effect. Now, Max Planck scientists in Dresden have observed a ...