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Investigation of phase change in Ge2Sb2Te5 films by coherent phonon spectroscopy

M. Först, T. Dekorsy, M. Laurenzis, C. Trappe, H. Kurz, and B. Béchevet

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Abstract

The phase transition of the pseudo-binary GeTe-Sb2Te3 system is studied by coherent phonon spectroscopy. Distinct changes of the phonon spectra related to specific modifications of the crystallographic structure are observed.

© 2000 Optical Society of America

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