论文标题
电子转移介导的碱性二聚体的衰变
Electron transfer mediated decay of alkali dimers attached to He nanodroplets
论文作者
论文摘要
发现在光电离氦液滴时通过电子转移介导的衰减（ETMD）有效地将附着在氦纳米光的表面上的碱金属二聚体有效地使。通过检测库仑爆炸和一个低运动能电子产生的两个能量离子的巧合，可以证明这一过程。离子和电子的动能光谱通过基于双原子势能曲线的简单模型计算复制，并且与HE-NA_2和HE-KRB系统的Ab ISLI算计算一致。这项工作表明，ETMD是暴露于电离辐射的异质纳米系统中的重要衰减通道。
Alkali metal dimers attached to the surface of helium nanodroplets are found to be efficiently doubly ionized by electron transfer-mediated decay (ETMD) when photoionizing the helium droplets. This process is evidenced by detecting in coincidence two energetic ions created by Coulomb explosion and one low-kinetic energy electron. The kinetic energy spectra of ions and electrons are reproduced by simple model calculations based on diatomic potential energy curves, and are in agreement with ab initio calculations for the He-Na_2 and He-KRb systems. This work demonstrates that ETMD is an important decay channel in heterogeneous nanosystems exposed to ionizing radiation.
