TY - JOUR A1 - Fukuzawa, Hironobu A1 - Takanashi, Tsukasa A1 - Kukk, Edwin A1 - Motomura, Koji A1 - Wada, Shin-ichi A1 - Nagaya, Kiyonobu A1 - Ito, Yuta A1 - Nishiyama, Toshiyuki A1 - Nicolas, Christophe A1 - Kumagai, Yoshiaki A1 - Iablonskyi, Denys A1 - Mondal, Subhendu A1 - Tachibana, Tetsuya A1 - You, Daehyun A1 - Yamada, Syuhei A1 - Sakakibara, Yuta A1 - Asa, Kazuki A1 - Sato, Yuhiro A1 - Sakai, Tsukasa A1 - Matsunami, Kenji A1 - Umemoto, Takayuki A1 - Kariyazono, Kango A1 - Kajimoto, Shinji A1 - Sotome, Hikaru A1 - Johnsson, Per A1 - Schöffler, Markus S. A1 - Kastirke, Gregor A1 - Kooser, Kuno A1 - Liu, Xiao-Jing A1 - Asavei, Theodor A1 - Neagu, Liviu A1 - Molodtsov, Serguei A1 - Ochiai, Kohei A1 - Kanno, Manabu A1 - Yamazaki, Kaoru A1 - Owada, Shigeki A1 - Ogawa, Kanade A1 - Katayama, Tetsuo A1 - Togashi, Tadashi A1 - Tono, Kensuke A1 - Yabashi, Makina A1 - Ghosh, Aryya A1 - Gokhberg, Kirill A1 - Cederbaum, Lorenz S. A1 - Kuleff, Alexander I. A1 - Fukumura, Hiroshi A1 - Kishimoto, Naoki A1 - Rudenko, Artem A1 - Miron, Catalin A1 - Kono, Hirohiko A1 - Ueda, Kiyoshi T1 - Real-time observation of X-ray-induced intramolecular and interatomic electronic decay in CH2I2 T2 - Nature Communications N2 - The increasing availability of X-ray free-electron lasers (XFELs) has catalyzed the development of single-object structural determination and of structural dynamics tracking in real-time. Disentangling the molecular-level reactions triggered by the interaction with an XFEL pulse is a fundamental step towards developing such applications. Here we report real-time observations of XFEL-induced electronic decay via short-lived transient electronic states in the diiodomethane molecule, using a femtosecond near-infrared probe laser. We determine the lifetimes of the transient states populated during the XFEL-induced Auger cascades and find that multiply charged iodine ions are issued from short-lived (∼20 fs) transient states, whereas the singly charged ones originate from significantly longer-lived states (∼100 fs). We identify the mechanisms behind these different time scales: contrary to the short-lived transient states which relax by molecular Auger decay, the long-lived ones decay by an interatomic Coulombic decay between two iodine atoms, during the molecular fragmentation. KW - Atomic and molecular interactions with photons KW - Chemical physics KW - Free-electron lasers Y1 - 2019 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/50326 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-503266 SN - 2041-1723 N1 - Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. VL - 10 IS - 1, Art. 2186 SP - 1 EP - 8 PB - Nature Publishing Group UK CY - [London] ER -