Plasmon Damping in Be, Mg, Al, Si, Ge and Sn

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概要

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• Characters of the plasma loss of electrons-plasmon energy, dispersion coefficient and angular dependences of both the half-width and the intensity of the loss peak-were measured for Be, Mg, Al, Si, Ge and Sn at 40kV. The angular dependence of the half-width was analyzed in the form of Γ_p=A+Bθ^2. As the result, it was found that there were two groups: Al, Mg and Sn belonged to the first group in which A had relatively small values and B was positive, and Ge, Si and Be belonged to the second group in which A had relatively large values and B was negative. The electron-electron interaction would be an important factor of the plasmon damping for the second group. The angular dependence of the intensity agreed with θ^<-2> law for the first group but did not for the second group. An anomalous damping was not observed in amorphous Ge and Si.

• 社団法人日本物理学会の論文
• 1974-06-15

著者

• Yada Keiji

  Research Institute For Scientific Measurements

• Aiyama Tetsuji

  Research Institute For Scientific Measurements Tohoku University

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