Figure 7

HRTEM for S1, S2, and S3. Cross-sectional zoomed-in HRTEM images show the sharp interfaces (rms roughness \(\approxeq\) 0.2 ± 0.1 nm) of MgO/Mn\(_{3}\)Ir of the specimens (a) S1, (b) S2 and (c) S3.
HRTEM for S1, S2, and S3. Cross-sectional zoomed-in HRTEM images show the sharp interfaces (rms roughness \(\approxeq\) 0.2 ± 0.1 nm) of MgO/Mn\(_{3}\)Ir of the specimens (a) S1, (b) S2 and (c) S3.