Magnetic field dependence of the DNP of (a) and (b) nuclei at different (c) weakly coupled neighboring sites around the divacancy in 6H-SiC. (c) Weakly coupled and sites around a divacancy in 6H-SiC which exhibit well-developed peak and dip in their polarization curve. The orange lobes show the spin density of the divacancy that localized on the silicon vacancy site. The greenish wire frame shows the domain around the divacancy, in which the DNP calculations are carried out. Those Si and C sites that show “peak and dip” polarization curve are represented by gray and blue balls, respectively. These sites are situated on an approximately spherical shell around the silicon vacancy site.