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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
Scientific reports, 01/2016, Letnik: 6, Številka: 1Journal Article
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.
