TEM and STEM for high resolution imaging of amorphous materials. (A) Typical localized atomic ordering observed during nanocrystallization of the supercooled liquid. The circles highlight the atomic configurations from an amorphous region with icosahedralike clusters. Scale bar: 1 nm (Adapted from ref. [122]. Copyright©2011, American Physical Society). (B) Ta MG vitrified via an ultrafast liquid-quenching approach. (left) An amorphous Ta nano-tips is formed between two bcc Ta crystals. Bottom left shows the corresponding FFT from the upper images. (right) Atomic image of glass-crystal interfaces. The cyan dotted lines show the gradual breakdown of the long-range order (Adapted from ref. [123]. Copyright©2014, Springer Nature). (C) HRTEM images and SAED (left) and HADDF-STEM images (right) of the ultrastable ZrCuAl MGs (Adapted from ref. [124]. Copyright©2018, Springer Nature). Scale bar: 5 nm. (D) Magnified HADDF-STEM (left) and reconstructed images (right) of the interface between the oxynitride amorphous intergranular film and the prismatic surface of the La doped β-Si₃N₄ grain. La atoms are denoted by red arrows (left) and the predicted La portions are shown by white circles (right) (Adapted from ref. [125]. Copyright©2004, Springer Nature). (E) Aberration-corrected HAADF-STEM image of amorphous Ir nanosheets. The insert image shows the SAED pattern (Adapted from ref. [126]. Copyright©2019, Springer Nature). (F) Monochormated HRTEM image of monolayer amorphous carbon and the corresponding Fourier transform of the selected region (inset) (Adapted from ref. [127]. Copyright©2020, Springer Nature). Scale bar: 1 nm. (G) HADDF-STEM image of the Pd-Ni-P alloy containing both cube phase and amorphous region with [111] zone axis (left). Magnified image of cube phase (right top) and amorphous phase (right bottom), compared with simulated images and the 6M-TTP cluster model (Adapted from ref. [128]. Copyright©2021, Springer Nature).