Abstract
A radio-frequency high-temperature superconducting magnetometer is described. It is based on the generation of combination frequencies in a nonlinear ceramic-superconductor sensor with a resonance circuit at its input. Measurements at the combination frequency allows for an improvement of the noise and frequency characteristics as compared to a magnetometer based on the generation of the second harmonic in the superconductor. The instrument has a level of intrinsic noise of (2–4) × 10–8 Oe/Hz1/2 within a frequency range of 17 kHz.
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Ignatjev, V.K., Yakimets, A.L. A Radio-Frequency High-Temperature Superconducting Magnetometer. Instruments and Experimental Techniques 45, 122–126 (2002). https://doi.org/10.1023/A:1014529116052
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DOI: https://doi.org/10.1023/A:1014529116052