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Micro-raman scattering studies of Ge-Sb-Te bulk crystals and nanoparticles

Title
Micro-raman scattering studies of Ge-Sb-Te bulk crystals and nanoparticles
Authors
Cho E.Yoon S.Yoon H.R.Jo W.
Ewha Authors
조윌렴윤석현
SCOPUS Author ID
조윌렴scopus; 윤석현scopus
Issue Date
2006
Journal Title
Journal of the Korean Physical Society
ISSN
0374-4884JCR Link
Citation
vol. 48, no. 6, pp. 1616 - 1619
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
We measured micro-Raman scattering spectra of commercially available Ge-Sb-Te (GST) bulk crystals and GST nanoparticles which were synthesized using a pulsed laser ablation method. The lack of the amorphous Te-Te stretching mode near 150 cm -1 from the Raman spectrum of the bulk sample indicated that the sample was well-crystallized. We also measured GST nanoparticles with different growth conditions, from which we could get information towards the optimal growth conditions for better crystallinity of the GST nanoparticles. Our results suggest that through local structural information, micro-Raman scattering spectroscopy can be used to study the phases and the phase changes in the GST bulk crystals and nanoparticles which is being developed for low-power non-volatile memory applications.
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자연과학대학 > 물리학전공 > Journal papers
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