Fig. 5: µSQUID-EPR.

(left) Resonance maps obtained by sweeping the angle at the fixed frequencies of 6.15 GHz, 9 GHz, 17.6 GHz, and 20 GHz. (right) Fit of resonance maps giving g = 1.96, φ = 3◦, \({B}_{2}^{0}\) = −6.80 × 10−1 GHz, \({B}_{4}^{0}\) = −1.57 × 10−3 GHz, \({B}_{6}^{0}\) = 1.6 × 10−7 GHz, \({B}_{2}^{2}\) = −2.75 × 10−1 GHz and \({B}_{2}^{4}\) = 3.38 × 10−3 GHz.