Chalcogenides: Metastability and Phase Change Phenomena by Alexander V. Kolobov

By Alexander V. Kolobov

A state of the art description of metastability saw in chalcogenide alloys is gifted with the accessory at the underlying physics. A comparability is made among sulphur(selenium)-based chalcogenide glasses, the place a number of photo-induced phenomena ensue totally in the amorphous part, and tellurides the place a reversible crystal-to-amorphous phase-change transformation is an important influence. functions of metastability in devices¿optical stories and nonvolatile digital phase-change random-access thoughts between others are mentioned, together with the newest developments. history fabric crucial for knowing present study within the box can be provided.

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32 1 Fundamentals of Amorphous Semiconductors Various chalcogenide glasses have been successfully fabricated using this technique [76]. However, not all compositions can be deposited using this method, the main problem being a choice of an appropriate solvent. Thus as regards phase-change materials the available literature reports are limited to GeSbSe [77]. 4 Ion Implantation One can also fabricate amorphous layers by ion bombardment where exposure of crystals to energetic ions results in their disordering.

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