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Observation of T(2)-like coherent optical phonons in epitaxial Ge(2)Sb(2)Te(5)/GaSb(001) films

The phonon spectrum of Ge(2)Sb(2)Te(5) is a signature of its crystallographic structure and underlies the phase transition process used in memory applications. Epitaxial materials allow coherent optical phonons to be studied in femtosecond anisotropic reflectance measurements. A dominant phonon mode...

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Detalles Bibliográficos
Autores principales: Shalini, A., Liu, Y., Al-Jarah, U.A.S., Srivastava, G. P., Wright, C. D., Katmis, F., Braun, W., Hicken, R. J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3797426/
https://www.ncbi.nlm.nih.gov/pubmed/24129388
http://dx.doi.org/10.1038/srep02965