Multi-particle momentum correlations extracted using covariance methods on multiple-ionization of diiodomethane molecules by soft-X-ray free-electron laser pulses - UTU Research Portal

A1 Refereed original research article in a scientific journal

Multi-particle momentum correlations extracted using covariance methods on multiple-ionization of diiodomethane molecules by soft-X-ray free-electron laser pulses

Authors: You D, Fukuzawa H, Luo Y, Saito S, Berholts M, Gaumnitz T, Huttula M, Johnsson P, Kishimoto N, Myllynen H, Nemer A, Niozu A, Patanen M, Pelimanni E, Takanashi T, Yokono N, Wada SI, Tono K, Owada S, Nagaya K, Yabashi M, Ueda K, Kukk E

Publisher: The Royal Society of Chemistry

Publication year: 2020

Journal: Physical Chemistry Chemical Physics

Journal name in source: Physical chemistry chemical physics : PCCP

Journal acronym: Phys Chem Chem Phys

Volume: 22

Issue: 5

First page : 2648

Last page: 2659

Number of pages: 12

ISSN: 1463-9076

eISSN: 1463-9084

DOI: https://doi.org/10.1039/C9CP03638e

Abstract

Momenta of ions from diiodomethane molecules after multiple ionization by soft-X-ray free-electron-laser pulses are measured. Correlations between the ion momenta are extracted by covariance methods formulated for the use in multiparticle momentum-resolved ion time-of-flight spectroscopy. Femtosecond dynamics of the dissociating multiply charged diiodomethane cations is discussed and interpreted by using simulations based on a classical Coulomb explosion model including charge evolution.