Abstract
Selenium is a common alloying addition to a variety of materials that show switching behavior, however, few electron microscope studies of amorphous Se exist presumably because of the difficulties in crystallizing the material due to its high vapor pressure. The crystallographic aspects of the crystallization behavior of amorphous Se have been reported by Shiojiri and the dislocation formation during the growth of Se crystals have been studied by Asseev et al. We investigated the reversible transformation of vacuum deposited amorphous Se to the crystalline, liquid and vapor phases by utilizing a triple sandwich film structure of C-Se-C or SiO2-Se-C. The electron beam itself was used as power source in all experiments.
Published Version
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