Effect of thermal vibration and the solid-liquid phase transition on electron dynamics: An inelastic x-ray-scattering study on Al

Article

关键词: SELF-ENERGY CONTRIBUTIONS;    LI METAL;    DIELECTRIC FUNCTION;    PLASMON DISPERSION;    BAND-STRUCTURE;    ALUMINUM;    SYSTEMS;    GAS;    BERYLLIUM;   

DOI  :  10.1103/PhysRevB.57.622

来源: SCIE

【 摘 要 】

Inelastic-x-ray-scattering measurements of the dynamic structure factor, S(q,omega), of electrons in Al both in the solid phase at rising temperatures and in the liquid are presented. The double-peak structure of S(q,omega) for q>q(c) (q(c)=plasmon cutoff vector), diminishes gradually with decreasing strength of the ion-core potential; the peak position and the sloping plateau of the S(q,omega) spectra for q>q(c) do not exhibit marked changes upon melting. The plasmon energy for q -->

【 授权许可】

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