Gone in 23 Attoseconds: Charge Transfer in Resonantly Core Excited Black Phosphorous
Materials Science
2020-03-31 v1
Abstract
How fast processes can we measure? Attosecond physics address the limit of measurable time in science. Atomic X-ray excited states offers a way to study extremely fast dynamics with chemical specificity. In black phosphorous an X-ray excited electron can relocate in 22.7 attoseconds. Using the lifetime of the P 1s core-hole as time-base, the radiationless decay spectrum can be used to study charge transfer processes on the time-scale of the atomic unit of time (24 attoseconds). We demonstrate that the technique can be extended to within a few percent of the core hole's lifetime, an order of magnitude smaller than previously thought.
Keywords
Cite
@article{arxiv.2003.13394,
title = {Gone in 23 Attoseconds: Charge Transfer in Resonantly Core Excited Black Phosphorous},
author = {Fredrik O. L. Johansson and Yasmine Sassa and Tomas Edvinsson and Andreas Lindblad},
journal= {arXiv preprint arXiv:2003.13394},
year = {2020}
}