Abstract A complex optical model potential modified by incorporating the concept of bonded atom which takes into consideration the overlapping effect of electron clouds between two atoms in a molecule is employed to calculate the total cross sections for electron scattering in such molecules as N$_{2}$, NO, NO$_{2}$, CH$_{4}$, CF$_{4}$, CF$_{3}$H, C$_{2}$H$_{2}$ and C$_{2}$H$_{4}$ at 30--5000eV using the additivity rule model at Hartree--Fock level. The quantitative total cross sections are compared with those obtained in experiments and other theories, wherever available, and good agreement is obtained at 30--5000eV. It is shown that the modified calculation results are much closer to the available experimental data than the unmodified ones at lower energies, especially below 500eV. Therefore,considering the overlapping effect of electron clouds in the complex optical model potential could be helpful for better calculation results about electron scattering total cross sections from molecules.
Received: 08 June 2004
Revised: 02 September 2004
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10174019).
Cite this article:
Shi De-Heng (施德恒), Sun Jin-Feng (孙金锋), Zhu Zun-Lue (朱遵略), Liu Yu-Fang (刘玉芳) A modification potential method for electron scattering total cross section calculations on several molecules at 30-5000eV 2005 Chinese Physics 14 120
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
