TEM observation of AFM in NiO

Antiferromagnetism in NiO Observed by Transmission Electron Diffraction.
J. C. Loudon
Phys. Rev Lett. 109, 267204 (2012)

(a) Electron diffraction pattern from the [112] zone axis taken at room temperature from a region of diameter 880 nm
with an exposure of 70 s. The +-1/2[111] superlattice are indicated by arrows. (b) Electron diffraction pattern from the same region taken at 563 K, above the Ne´el temperature TN ¼ 523 K, showing that the superlattice reflections are no longer present.