Kinetics of electron beam crystallization of amorphous films of Yb2O2S
Source abstract
Abstract
Abstract Electron-beam crystallization of amorphous films of Yb2O2S was studied by the methods of transmission electron microscopy “in situ” with video registration of structural changes. The kinetic curves, demonstrating the dependence on time of the crystals density and of the fraction of the crystalline phase was obtained with the help of frame-by-frame analysis of the video. The formation of the polycrystalline film occurs at a constant crystal growth rate and at a constant intensity of nucleation of crystallization centers, which corresponds to α-version of the Kolmogorov's model. The phase transformation in amorphous films of Yb2O2S occurs in accordance with the island polymorphous crystallization mode with the relative length δ0≈ 1030. At small layer thicknesses of Yb2O2S (d ≤ 20 nm) the effect of stabilization of the amorphous state was observed.
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Research context
OpenAlex topics: Glass properties and applications · Phase-change materials and chalcogenides · Photorefractive and Nonlinear Optics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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