Fig. 5: TR12 centers in Bulk sample as vector magnetometer.

a Optically detected magnetic resonance contrast of TR12 centers in Bulk considering the second highest optically detected magnetic resonance contrast of all TR12 orientations. More plots are given in the Supplementary Fig. 4. b Optically detected magnetic resonance contrast of nitrogen-vacancy centers considering the highest optically detected magnetic resonance contrast of all nitrogen-vacancy orientations. c Experimental confirmation of the adjacent simulation for orientations not aligned with any of the excited triplet axes at B = 147 mT. For the marked point, the simulated optically detected magnetic resonance contrast of 10.8% is divided between two lines resulting from the Jahn–Teller effect. Since the corresponding data in the insets were not corrected for background fluorescence, these measured intensities match the simulated value of 10.8%. d In comparison, the optically detected magnetic resonance intensity of the nitrogen-vacancy center would drop to almost 0.1% with the same misalignment of about 25% from its symmetry axis at B = 147 mT.