Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 355, Issue 37-42, Pages 1820-1823Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2009.04.053
Keywords
Glass transition; Chalcogenides; Nano-clusters; Medium-range order
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The transition from the crystalline state to amorphous state and back has been studied in the particular case of the GeSb2Te4 phase-change material by a computer simulation procedure. Modelling at the nanoscale indicates specific structural characteristics, especially the multiplicity of the amorphous phase as opposite to the uniqueness of the crystalline phase. in the particular case of the Si(12)Ge(10)AS(30)Te(48) switching glass two types of ordering have been pointed out and characterized. (C) 2009 Elsevier B.V. All rights reserved.
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