Vol 4: Probing of 2 dimensional confinement-induced structural transitions in amorphous oxide thin film.Report as inadecuate



 Vol 4: Probing of 2 dimensional confinement-induced structural transitions in amorphous oxide thin film.


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This article is from Scientific Reports, volume 4.AbstractWhereas the atomic structure of surface of crystals is known to be distinct from that of bulk, experimental evidence for thickness-induced structural transitions in amorphous oxides is lacking. We report the NMR result for amorphous alumina with varying thickness from bulk up to 5 nm, revealing the nature of structural transitions near amorphous oxide surfaces-interfaces. The coordination environments in the confined amorphous alumina thin film are distinct from those of bulk, highlighted by a decrease in the fractions of high-energy clusters and thus the degree of disorder with thickness. The result implies that a wide range of variations in amorphous structures may be identified by controlling its dimensionality.



Author: Lee, Sung Keun; Ahn, Chi Won

Source: https://archive.org/







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