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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...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2013
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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 |