Triple ionisation of methane by double Auger and related pathways

被引：21

作者：

Eland, J. H. D. ^{[2
]}

Linusson, P. ^{[3
]}

Hedin, L. ^{[1
]}

Andersson, E. ^{[1
]}

Rubensson, J-E. ^{[1
]}

Feifel, R. ^{[1
]}

机构：

[1] Uppsala Univ, Dept Phys & Mat Sci, SE-75121 Uppsala, Sweden

[2] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England

[3] Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, SE-10691 Stockholm, Sweden

来源：

CHEMICAL PHYSICS LETTERS | 2010年 / 485卷 / 1-3期

基金：

瑞典研究理事会;

关键词：

C-1S PHOTOELECTRON-SPECTRA; CORE-IONIZED METHANE; VIBRATIONAL STRUCTURE; LIFETIME;

D O I：

10.1016/j.cplett.2009.11.072

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Triple ionisation of methane by decay of the singly charged ion with a 1s vacancy produces a trication spectrum starting near 70 eV binding energy. Vibrational excitation in the initial hole state broadens and shifts the triple ionisation bands. Ionisation through core-valence doubly ionised states gives lower triple ionisation onsets and changes the spectral intensity pattern in accordance with retention of the initial valence holes in course of the double Auger effect. The double Auger effects occur both directly and as cascades, the different pathways producing different electron distributions and final state spectra. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：21 / 25

页数：5

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