TEM characterizations for the Ce-45 MMP magnet. (a) Bright field image taken along the [001] zone axis of grain 1 (G1). (b) SAED pattern taken in the region of grain 1. (c) SAED pattern taken in the region of grain 2 (G2). (d) and (e) SAED patterns taken in the region indicated by the red dashed circle in (a) by tilting it to different zone axes, revealing a cubic structure (space group Fd 3 ¯ m ).^[6]