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Ultrafast 3D Imaging of Lattice Dynamics in Au Nanocrystals

posted by Timofey Golubev, 06.10.2014, 23:09

Since many processes such as the generation and evolution of phonons occur on the scale of pico and femto seconds, ultrafast diffraction is a very powerful tool in understanding these processes. There have been some works reporting on dynamics of ensembles of nanoparticles. While these can provide valuable information on processes such as phase transitions and phonon evolution, it is difficult to pinpoint the underlying causes of these processes when studying a system of many particles due to the complex interactions between them. Therefore, this first report on studying dynamics of a single nanocrystal is an important achievement in this field.

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