Fig. 2: Wide-field imaging of magnetization of an exfoliated FGT flake by \({V}_{{{{{{\rm{B}}}}}}}^{-}\) spin defects in hBN.
From: Wide field imaging of van der Waals ferromagnet Fe3GeTe2 by spin defects in hexagonal boron nitride
a Schematic illustration of quantum sensing of local stray fields BF generated from FGT by proximate \({V}_{{{{{{\rm{B}}}}}}}^{-}\) spin defects. b, c Two-dimensional maps of static stray field BF (b) and reconstructed magnetization 4\(\pi\)M (c) of an exfoliated FGT flake measured at 6 K with an external perpendicular magnetic field Bext of 142 G. The black and purple dashed lines in Fig. 2b outline the boundary of the FGT and hBN flake, respectively, and the scale bar is 5 \({{{{{\rm{\mu }}}}}}\)m.
