Investigation of Electron Momentum Density in Carbon Nanotubes Using Transmission Electron Microscopy.
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2019
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Abstract
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.
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feng2019investigationmicroscopy
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| Authors | Feng, Zhenbao;Li, Hefu;Wang, Zongliang;Zhang, Xiaoyan;Li, Hengshuai;Hu, Haiquan;Su, Dangsheng; |
| Journal | Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada |
| Year | 2019 |
| DOI |
10.1017/S1431927619014879
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