Abstract
Structural transformation of the Ge2Sb2Te5 was investigated by a high resolution transmission electron microscopy (HRTEM). It was found that Ge atoms undergo umbrella-flip motion from a tetrahedral site into an octahedral site in transforming from the amorphous to the metastable phase of Ge2Sb2Te5. The presence of a twin boundary between fcc and hexagonal structured Ge2Sb2Te5 was also confirmed through the HRTEM observations. These results support the umbrella-flip model proposed by Kolobov et al. [Nat. Mater. 3, 703 (2004)] and the epitaxial growth model proposed by Park et al. [Appl. Surf. Sci. 256, 8102 (2006)].
References
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Dates
Type | When |
---|---|
Created | 17 years, 11 months ago (Sept. 6, 2007, 6:15 p.m.) |
Deposited | 2 years, 1 month ago (June 24, 2023, 1:10 a.m.) |
Indexed | 3 weeks, 1 day ago (July 30, 2025, 6:50 a.m.) |
Issued | 17 years, 11 months ago (Sept. 3, 2007) |
Published | 17 years, 11 months ago (Sept. 3, 2007) |
Published Online | 17 years, 11 months ago (Sept. 6, 2007) |
Published Print | 17 years, 11 months ago (Sept. 3, 2007) |
@article{Kim_2007, title={Investigation of the structural transformation behavior of Ge2Sb2Te5 thin films using high resolution electron microscopy}, volume={91}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.2783478}, DOI={10.1063/1.2783478}, number={10}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Kim, Eun Tae and Lee, Jeong Yong and Kim, Yong Tae}, year={2007}, month=sep }