TY  - JOUR
AU  - Zhang, Shutao
AU  - Zhang, Ming
AU  - Inhester, Ludger
AU  - Ueda, Kiyoshi
AU  - Lucchesse, Robert
AU  - Zhao, Leshi
AU  - Zhang, Shuqiao
AU  - Dong, Bowen
AU  - Hao, Yajiang
AU  - Li, Zheng
TI  - Molecule effect in inner shell sequential doubleionization
JO  - The journal of chemical physics
VL  - 163
IS  - 2
SN  - 0021-9606
CY  - Melville, NY
PB  - American Institute of Physics
M1  - PUBDB-2024-07324
SP  - 024303
PY  - 2025
AB  - We present a theoretical framework for the angular distribution of the two emitted photoelectrons in sequential inner shell two-photon double ionization (TPDI) of uniformly distributed molecules. As an example, we numerically calculated the sequential double ionization of the 4d shells of the iodine atom in CH<sub>3</sub>I with a length and velocity gauge and obtained the corresponding angular anisotropy parameters. For comparison, we also compute the anisotropy parameters for atomic xenon. The anisotropy parameter for the second ionization of CH<sub>3</sub>I is strongly influenced by the molecular structure, providing a sensitive probe for photoionization dynamics in polyatomic systems. This study provides a computational code for simulating sequential TPDI processes, enabling one to computationally study the molecular effects in the angular distribution for sequential inner-shell double ionization. 
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1063/5.0265297
UR  - https://bib-pubdb1.desy.de/record/619024
ER  -