Valence Compton profiles (CPs) of multiwall (MWCNTs) and single-wall carbon nanotubes (SWCNTs) were obtained by recording electron energy-loss spectra at large momentum transfer in the transmission electron microscope, a technique known as electron Compton scattering from solids (ECOSS). The experimental MWCNT/SWCNT results were compared with that of graphite. Differences between the valence CPs of MWCNTs and SWCNTs were observed, and the SWCNT CPs indicate a greater delocalization of the ground-state charge density compared to graphite. The results clearly demonstrate the feasibility and potential of the ECOSS technique as a complementary tool for studying the electronic structure of materials with nanoscale spatial resolution.

中文翻译：

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使用透射电子显微镜研究碳纳米管中的电子动量密度

多壁 (MWCNT) 和单壁碳纳米管 (SWCNT) 的价康普顿分布 (CP) 是通过在透射电子显微镜中记录大动量转移时的电子能量损失光谱获得的，这种技术称为固体电子康普顿散射 (ECOSS) ）。将实验 MWCNT/SWCNT 结果与石墨的结果进行了比较。观察到 MWCNT 和 SWCNT 的价态 CP 之间的差异，并且 SWCNT CP 表明与石墨相比，基态电荷密度的离域更大。结果清楚地证明了 ECOSS 技术作为研究具有纳米级空间分辨率的材料电子结构的补充工具的可行性和潜力。