Desorption dynamics of heavy alkali metal atoms (Rb, Cs) off the surface of helium nanodroplets.

Desorption dynamics of heavy alkali metal atoms (Rb, Cs) off the surface of helium nanodroplets.
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氦纳米液滴表面重碱金属原子(Rb、Cs)的解吸动力学

DOI:
10.1021/jp503308w
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发表时间:
2014
期刊:
The journal of physical chemistry. A
影响因子:
--
通讯作者:
Barranco M
Barranco M
中科院分区:
--
文献类型:
--
作者:
J. v. Vangerow J;Sieg A;Stienkemeier F;Mudrich M;Leal A;Mateo D;Hernando A;Barranco M

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我们提出了一个结合离子成像和密度泛函理论研究的动态解吸过程中的铷和铯原子的表面氦纳米液滴后,激发的扰动6s和7s状态,分别。在meff/mHe ~(10)(Rb)和~(13)(Cs)的脱附反应中,氦滴有效质量的赝双原子模型能很好地描述实验和理论结果。偏离这个模型被发现为Rb激发到6p状态。光电子能谱表明,在喷射过程中,掺杂剂-液滴相互作用引起脱附原子弛豫到低位电子态。
We present a combined ion imaging and density functional theory study of the dynamics of the desorption process of rubidium and cesium atoms off the surface of helium nanodroplets upon excitation of the perturbed 6s and 7s states, respectively. Both experimental and theoretical results are well represented by the pseudodiatomic model for effective masses of the helium droplet in the desorption reaction ofmeff/mHe≈ 10 (Rb) and 13 (Cs). Deviations from this model are found for Rb excited to the 6p state. Photoelectron spectra indicate that the dopant–droplet interaction induces relaxation into low-lying electronic states of the desorbed atoms in the course of the ejection process.
纯 4He 团簇和掺杂 4He 团簇的系统学。
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发表时间: 1995
期刊: Physical review. B, Condensed matter
影响因子: --
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