Electron attachment to helium microdroplets: Creation induced magic?
Electron attachment to helium microdroplets: Creation induced magic?
复制标题
电子附着在氦微滴上：创造诱导魔法？
作者：
Jiang;Kim;Northby
通过将低能束与不带电的氦团簇束交叉产生的He[sub [ital N]][sup [minus]]离子的尺寸分布表现出阈值，低于该阈值则检测不到离子。然而，阈值区的结构出乎意料，并在[ITAL N]=（2.0[+-]0.1）[×]10[sup 5]原子处呈现出尖锐的魔峰。我们认为，这种行为来自导带的不稳定性，从而导致形成一个亚稳态捕获的气泡电子在液滴中的动力学。
The size distribution of He[sub [ital N]][sup [minus]] ions produced by crossing a low energy beam with an uncharged helium cluster beam exhibits a threshold below which no ions are detected. The threshold region is unexpectedly structured, however, and exhibits a sharp magic' mass peak at [ital N]=(2.0[plus minus]0.1)[times]10[sup 5] atoms. We suggest that this behavior derives from the dynamics of the conduction band instability which leads to the formation of a metastably trapped bubble electron in the droplet.