Formation of negative ions in grazing scattering of neutral atoms from alkali-metal halide (100) surfaces
Formation of negative ions in grazing scattering of neutral atoms from alkali-metal halide (100) surfaces
复制标题
碱金属卤化物 (100) 表面中性原子掠散射中负离子的形成
DOI:
10.1103/physreva.85.014901
复制
发表时间:
2012-01
影响因子:
2.9
通讯作者:
Chen, Ximeng
中科院分区:
文献类型:
--
作者:
Zhou, Wang;Li, Yuan;Zhao, Lei;Chen, Ximeng
The Demkov model fails to explain the formation of negative ions in grazing scattering of atoms from insulator surfaces at relatively high velocities, since the electron detachment process is not included in the model. In this work, the well-known quantum tunneling effect for electrons through the repulsive Coulomb barrier has been proposed to describe electron detachment from the formed negative ions. The combination of these two models results in excellent agreement with the experimental data in the overall impact velocity range.
DOI:
10.1016/b0-12-227410-5/00040-5
发表时间:
2003
期刊:
--
影响因子:
--
作者:
R. E. Johnson
通讯作者:
R. E. Johnson