Membrane-based torque magnetometer: enhanced sensitivity by optical readout of the membrane displacement

Membrane-based torque magnetometer: enhanced sensitivity by optical readout of the membrane displacement

The design and realization of a torque magnetometer is reported that reads the deflection of a membrane by optical interferometry. The compact instrument allows for low-temperature measurements of tiny crystals less than a microgram with a significant improvement in sensitivity, signal-to-noise rati...

Повний опис

Бібліографічні деталі
Автори: Blankenhorn, M, Heintze, E, Slota, M, van Slageren, J, Moores, B, Degen, C, Bogani, L, Dressel, M
Формат: Journal article
Мова:English
Опубліковано: AIP Publishing 2017
Опис
Резюме:The design and realization of a torque magnetometer is reported that reads the deflection of a membrane by optical interferometry. The compact instrument allows for low-temperature measurements of tiny crystals less than a microgram with a significant improvement in sensitivity, signal-to-noise ratio as well as data acquisition time compared with conventional magnetometry and offers an enormous potential for further improvements and future applications in different fields. Magnetic measurements on single-molecule magnets demonstrate the applicability of the membrane-based torque magnetometer.

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