Figure 8.

Simulated normalized SAR_1mg around the Pt and 3C-SiC (both on Si substrate) samples containing three electrodes. E1, E2, and E3 denote short, medium, and long electrode, respectively. The results are normalized with the maximum SAR_1mg value that occurs at the vicinity of the largest Pt electrode. (a) Estimated normalized SAR_1mg for 3C-SiC via FEM electromagnetic simulations in ANSYS HFSS. Both top (top image) and cross-section (bottom images) views for each electrode illustrated. Maximum estimated SAR_1mg for 3C-SiC appeared at the tip of the longest electrode, while the averaged B₁ at the coil isocenter was ~10 µT. (b) Estimated normalized SAR_1mg distribution for the Pt sample. Estimated normalized SAR_1mg along the path starting from the tip of the E3 electrode to 2 mm away in the vertical plane (red line) as indicated in plot (c) and to 0.3 mm away in the horizontal plane (red line) as shown in plot (d). Maximum SAR_1mg occurred at tip of longest electrode. Results indicate a ~30% reduction in the maximum SAR_1mg for 3C-SiC compared to Pt.