Charge and Nuclear Dynamics Induced by Deep Inner-Shell Multiphoton Ionization of CH3I Molecules by Intense X-ray Free-Electron Laser Pulses

被引：58

作者：

Motomura, Koji ^{[1
]}

Kukk, Edwin ^{[1
,2
]}

Fukuzawa, Hironobu ^{[1
,3
]}

Wada, Shin-ichi ^{[3
,4
]}

Nagaya, Kiyonobu ^{[3
,5
]}

Ohmura, Satoshi ^{[5
]}

Mondal, Subhendu ^{[1
]}

Tachibanai, Tetsuya ^{[1
]}

Ito, Yuta ^{[1
]}

Koga, Ryosuke ^{[4
]}

Sakai, Tsukasa ^{[5
]}

Matsunami, Kenji ^{[5
]}

Rudenko, Artem ^{[6
]}

Nicolas, Christoyhe ^{[7
]}

Liu, Xiao-Jing ^{[7
]}

Miron, Catalin ^{[7
,8
]}

Zhang, Yizhu ^{[9
]}

Jiang, Yuhai ^{[9
]}

Chen, Jianhui ^{[10
]}

Anand, Mailam ^{[11
]}

Kim, Dong Eon ^{[11
]}

Tono, Kensuke ^{[12
]}

Yabashi, Makina ^{[3
]}

Yao, Makoto ^{[5
]}

Ueda, Kiyoshi ^{[1
,3
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland

[3] RIKEN SPring 8 Ctr, Sayo, Hyogo 6795148, Japan

[4] Hiroshima Univ, Dept Phys Sci, Higashihiroshima 7398526, Japan

[5] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[6] Kansas State Univ, Dept Phys, JR Macdonald Lab, Manhattan, KS 66506 USA

[7] Synchrotron SOLEIL, FR-91192 Gif Sur Yvette, France

[8] Horia Hulubei Natl Inst Phys & Nucl Engn, ELI NP, RO-077125 Magurele, Jud Ilfov, Romania

[9] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China

[10] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[11] POSTECH, Dept Phys, CASTECH, MPC AS, Pohang, South Korea

[12] Japan Synchrotron Radiat Res Inst JASRI, Sayo, Hyogo 6795198, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2015年 / 6卷 / 15期

基金：

芬兰科学院; 新加坡国家研究基金会; 日本学术振兴会;

关键词：

ATOMS; PHOTOELECTRON; XFEL;

D O I：

10.1021/acs.jpclett.5b01205

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：

In recent years, free-electron lasers operating in the true X-ray regime have opened up access to the femtosecond-scale dynamics induced by deep inner-shell ionization. We have investigated charge creation and transfer dynamics in the context of molecular Coulomb explosion of a single molecule, exposed to sequential deep inner-shell ionization within an ultrashort (10 fs) X-ray pulse. The target molecule was CH3I, methane sensitized to X-rays by halogenization with a heavy element, iodine. Time-of-flight ion spectroscopy and coincident ion analysis was employed to investigate, via the properties of the atomic fragments, single-molecule charge states of up to +22. Experimental findings have been compared with a parametric model of simultaneous Coulomb explosion and charge transfer in the molecule. The study demonstrates that including realistic charge dynamics is imperative when molecular Coulomb explosion experiments using short-pulse facilities are performed.

引用

页码：2944 / 2949

页数：6

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