Federal Research Center A. E. Favorsky Irkutsk Institute of Chemistry of the SB RAS

报告人简介

Anna Skitnevskaya received her Ph.D. in Physical Chemistry in 2013 from the Laboratory of Quantum Chemistry, Irkutsk State University, Russia. After a postdoctoral stay at the same university with Professor Trofimov, who is recognized for the development and implementation of electronic structure methods based on Green's function (or propagator) theories, as well as applications of such methods to various problems of quantum chemistry and molecular spectroscopy. In 2021, she joined the Theoretical Chemistry Group at the University of Heidelberg, Germany, as a Senior Scientist. Since 2025, she is a leading researcher at the Federal Research Center, A.E. Favorsky Irkutsk Institute of Chemistry, which belongs to the Siberian Branch of the Russian Academy of Sciences. Together with Prof. A.B. Trofimov and Prof. L.S. Cederbaum, she conducts research on electronic and nuclear dynamics of polyatomic molecules. In recent years, she has focused on the theoretical study of ultrafast intermolecular coulombic decay (ICD) in biologically relevant systems. Her work has been recognized with several prizes and awards, including the 2024 National "KOLBA" Prize for Female Scientists in Russia.

报告摘要

ICD [1] is a non-local autoionization process that occurs when highly excited cation radicals, produced with ionization energies higher than the double ionization threshold of the system, relax via electron ejection from the neighboring molecule. ICD usually occurs in the femtosecond regime at a comparable but slower rate than local autoionization of the cation radical itself (Auger decay), when both channels are energetically possible.Nevertheless, there are conditions that allow an increased efficiency of ICD as the non-local decay scenario. In the talk, theoretical and experimental results will be presented demonstrating the factors that influence the energetics and efficiency of ICD, including recent studies suggesting that in certain conditions ICD can play a key role in the relaxation of molecular systems under the action of radiation [2].

Ref:

[1] Jahnke T., Hergenhahn U., Winter B. et al. Chem. Rev. 2020, 120 (20), 11295–11369.

[2] Gao, Y., Skitnevskaya, A. D., Wang, E. et al. Phys. Rev. X 2025, 15 (1), 11053.

报告地点：中国科学院物理研究所怀柔园区X1南楼204会议室

腾讯视频会议号：288-574-445，会议密码：250508

邀请人：张鹏举 特聘研究员

联系人：万源   研究员

　　　　汪非凡  副研究员

　　　　田春璐 cltian@iphy.ac.cn

主办方：中国科学院物理研究所、松山湖材料实验室