We report on elastic electron scattering cross sections from Ca and Mg confined by C 60 and C 20 using the optical potential method. We demonstrate the diffuse effect caused by a fullerene cage upon the elastic electron scattering process by employing a commonly used square-well potential and the recently ab initio calculated continuousness electrostatic potential. For Ca@C 60 , we found that the differential cross sections calculated by the continuousness electrostatic potential model are compatible with the square-well potential model while the square-well potential model tends to overestimate the integrated cross section than the continuousness electrostatic potential model. Results of electron collision from Mg@C 20 have shown big discrepancies exist in both of the differential and integrated cross sections between two potentials, which implies that a new ab initio calculated electrostatic potential model should be preferr...

中文翻译：

---

来自A @C n的弹性电子散射（A = Ca，Mg，n = 60，20）

我们使用光势法报告了由C 60和C 20限制的Ca和Mg的弹性电子散射截面。我们通过使用常用的方阱势和最近从头算得出的连续性静电势，证明了富勒烯笼在弹性电子散射过程中引起的扩散效应。对于Ca @ C 60，我们发现用连续静电势模型计算的微分横截面与平方阱势模型兼容，而平方阱势模型比连续静电势模型倾向于高估积分横截面。来自Mg @ C 20的电子碰撞的结果表明，两个电位之间的微分截面和积分截面都存在很大的差异，