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Picosecond x-ray strain rosette reveals direct laser excitation of coherent transverse acoustic phonons

Using a strain-rosette, we demonstrate the existence of transverse strain using time-resolved x-ray diffraction from multiple Bragg reflections in laser-excited bulk gallium arsenide. We find that anisotropic strain is responsible for a considerable fraction of the total lattice motion at early time...

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Detalles Bibliográficos
Autores principales: Lee, Sooheyong, Williams, G. Jackson, Campana, Maria I., Walko, Donald A., Landahl, Eric C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4707471/
https://www.ncbi.nlm.nih.gov/pubmed/26751616
http://dx.doi.org/10.1038/srep19140