magnetic sensor

JQI group uses diamond-based quantum sensors produce images of currents in graphene.

Measuring faint magnetic fields is a trillion-dollar business.  Gigabytes of data, stored and quickly retrieved from chips the size of a coin, are at the heart of consumer electronics.   Even higher data densities can be achieved by enhancing magnetic detection sensitivity---perhaps down to nano-tesla levels.
Greater magnetic sensitivity is also useful in many scientific areas, such as the identification of biomolecules such as DNA or viruses.  This research must often take place in a warm, wet environment, where clean conditions or low temperatures are not possible.  JQI scientists address this concern by developing a diamond sensor that operates in a fluid environment.