Observation of Interference Effects in (e, 2e) Electron Momentum Spectroscopy of SF6 (cited: 1) |
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Authors: | Min-fu Zhao Xu Shan Jing Yang En-liang Wang Shan-shan Niu Xiang-jun Chen |
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Affiliation: | 1.Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;The Center of Basic Laboratory, West Anhui University, Lu'an 237012, China2.Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China |
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Abstract: | Two-dimensional electron density map (2D map) of binding energy and relative azimuthal angle (i.e., momentum) for the outer-valence molecular orbitals of SF6 has been measured by a highly sensitive electron momentum spectrometer with noncoplanar symmetric geometry at the impact energy of 1.2 keV plus binding energy. The experimental electron momentum profiles for the relevant molecular orbitals have been extracted from the 2D map and interpreted on the basis of the quantitative calculations using the density functional theory with B3LYP hybrid functional. For the outermost F2p nonbonding orbitals of SF6, the interference patterns are clearly observed in the ratios of the electron momentum profiles of molecular orbitals to that of atomic F2p orbital. |
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Keywords: | (e 2e) electron momentum spectroscopy Interference effect Bond oscillation Electron momentum profile |
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