A probe for magnetization measurements of thin superconducting films in pulsed high magnetic fields

This paper describes an inductive magnetization sensor, designed to measure thin superconducting films (of order 3000 Å) in very strong magnetic fields. For magnetic fields in the range 250–500 kG, the sensitivity of the probe is 10−2 emu. Accuracy and high sensitivity were obtained by combining a sample extraction system, vibration isolation, and an inductive sensor with optimized flux coupling geometry. The magnetic flux coupling to the sensor was verified to exceed 70%, both by calculation and experimental calibration.