Fig. 3From: Real-time observation of phase transition from layered to spinel phase under electron beam irradiationTime series of high-resolution TEM images (a1–d1) and corresponding fast Fourier transform patterns (a2–d2) of β-Co(OH)2 during the electron beam irradiation. The data were selected for 0 s, 30 s, 120 s and 300 s. Scale bar is 10 nm. FFT data are rotated and magnified for a clear observationBack to article page