Measurement of Electron-Ion Relaxation in Warm Dense Copper

Experimental investigation of electron-ion coupling and electron heat capacity of copper in warm and dense states are presented. From time-resolved x-ray absorption spectroscopy, the temporal evolution of electron temperature is obtained for non-equilibrium warm dense copper heated by an intense fem...

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Detalles Bibliográficos
Autores principales: Cho, B. I., Ogitsu, T., Engelhorn, K., Correa, A. A., Ping, Y., Lee, J. W., Bae, L. J., Prendergast, D., Falcone, R. W., Heimann, P. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4702138/
https://www.ncbi.nlm.nih.gov/pubmed/26733236
http://dx.doi.org/10.1038/srep18843
Descripción
Sumario:Experimental investigation of electron-ion coupling and electron heat capacity of copper in warm and dense states are presented. From time-resolved x-ray absorption spectroscopy, the temporal evolution of electron temperature is obtained for non-equilibrium warm dense copper heated by an intense femtosecond laser pulse. Electron heat capacity and electron-ion coupling are inferred from the initial electron temperature and its decrease over 10 ps. Data are compared with various theoretical models.

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