학술논문
Electron-Ion Equilibration in Ultrafast Heated Graphite.
Document Type
Article
Author
Source
Subject
*X-ray diffraction
*GRAPHITE
*THERMIONIC emission
*ELECTRON-ion collisions
*LEPTONS (Nuclear physics)
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Language
ISSN
0031-9007
Abstract
We have employed fast electrons produced by intense laser illumination to isochorically heat thermal electrons in solid density carbon to temperatures of ∼10?000??K. Using time-resolved x-ray diffraction, the temperature evolution of the lattice ions is obtained through the Debye-Waller effect, and this directly relates to the electron-ion equilibration rate. This is shown to be considerably lower than predicted from ideal plasma models. We attribute this to strong ion coupling screening the electron-ion interaction. [ABSTRACT FROM AUTHOR]