Coherent field emission from a multi-walled carbon nanotube with two open-ended branches |
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| Authors: | Bai Xin Zhang Geng-Min Wang Ming-Sheng Zhang Zhao-Xiang Yu Jie Zhao Xing-Yu Guo Deng-Zhu and Xue Zeng-Quan |
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| Affiliation: | Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China |
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| Abstract: | Interference fringes are obtained in a field-emission microscopy
(FEM) study of a multi-walled carbon nanotube (MWCNT) with two
open-ended branches. The FEM pattern, which is composed of three
parallel streaks, can be interpreted by using classical Young's
double-slit interference with the ends of the two MWCNT branches
treated as two secondary sources of the electron wave. The origin of
the coherency of the electron beams from the two branches is
discussed on the basis of the quantitative analysis of the FEM
pattern. The result suggests a new approach to obtaining a coherent
electron source. |
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| Keywords: | interference field emission carbon nanotube |
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