Exchange-Biased Anisotropic Magnetoresistive Field Sensor

IrMn exchange-biased anisotropic magnetoresistive sensors have been optimized for increased outputs and reduced noise. An ~56% increase in peak-to-peak outputs has been achieved in IrMn exchange-biased NiFe thin-film sensors, relative to sensors without IrMn. Critically, these sensors' transfer functions show a linear and symmetric magnetic field response with small hysteresis. The tradeoff betwee...