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. Author manuscript; available in PMC: 2020 Oct 27.
Published in final edited form as: Phys Rev Res. 2020 Jun 24;2(2):023394. doi: 10.1103/physrevresearch.2.023394

FIG. 5. Magnetometer comparison:

FIG. 5.

Magnetic noise spectra of a commercial magnetoresistive magnetometer (Twinleaf VMR), fluxgate magnetometer (SENSYS FGM-100) and our dual-resonance NV-ferrite magnetometer reproduced from Fig. 4(b). Each magnetometer was placed in a similar location within the experimental apparatus and subject to the same bias and test field amplitudes. The test field frequency was 130 Hz for both commercial sensors and 135 Hz for NV-ferrite. The manufacturer-specified sensitivities are 300 pT/Hz and 10 pT/Hz for the VMR and fluxgate, respectively.