Fig. 2: The structure of the ice Ic+h domain.
From: Observing growth and interfacial dynamics of nanocrystalline ice in thin amorphous ice films
a HRTEM image of a grown hetero-crystalline ice Ic+h domain at the [110] zone axis. FFT of the boxed areas in a at a region of ice Ic sequences along [110] zone axis (b), and a hetero-crystalline region (c). d IFFT of the \((\bar{2}20)\) peak of the white boxed region in a, revealing positions of non-cubic sequences. e, f Zoomed-in, low-pass filtered images of the region marked with the orange dotted line showing Ic sequences (e), and with the blue dotted line showing Ih sequences and stacking defects (f). Models constructed for ice Ic (g), ice Ih (h), and ice Ic+h (i) sequences, in which the turquoise spheres represent oxygen atoms. TEM simulations results of ice Ic (j), ice Ih (k), and ice Ic+h (l) models. Configurations of ice Ic (m), ice Ih (n), and ice Ic+h (o) crystal structures with labeled planes. Scale bars = 2 nm.
