Magnetoresistance ratio enhancement in Heusler-based alloy
(PHYSorg.com Physics)

Magnetic field sensors can enhance applications that require efficient electric energy management. Improving magnetic field sensors below the picoTesla range could enable a technique to measure brain activity at room temperature with millisecond resolution-called magnetic encephalography-without superconducting quantum interference device (SQUID) technology, which requires cryogenic temperatures to work.