Fourfold Differential Photoelectron Circular Dichroism

K. Fehre; N. M. Novikovskiy; S. Grundmann; G. Kastirke; S. Eckart; F. Trinter; J. Rist; A. Hartung; D. Trabert; C. Janke; G. Nalin; M. Pitzer; S. Zeller; F. Wiegandt; M. Weller; M. Kircher; M. Hofmann; L. Ph. H. Schmidt; A. Knie; A. Hans; L. Ben Ltaief; A. Ehresmann; R. Berger; H. Fukuzawa; K. Ueda; H. Schmidt-Böcking; J. B. Williams; T. Jahnke; R. Dörner; M. S. Schöffer; Ph. V. Demekhin

doi:10.1103/physrevlett.127.103201

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arXiv · 2106.14170

Fourfold Differential Photoelectron Circular Dichroism

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Abstract

We report on a joint experimental and theoretical study of photoelectron circular dichroism (PECD) in methyloxirane. By detecting O 1s-photoelectrons in coincidence with fragment ions, we deduce the molecule's orientation and photoelectron emission direction in the laboratory frame. Thereby, we retrieve a fourfold differential PECD clearly beyond 50%. This strong chiral asymmetry is reproduced by ab initio electronic structure calculations. Providing such a pronounced contrast makes PECD of fixed-in-space chiral molecules an even more sensitive tool for chiral recognition in the gas phase.

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K. Fehre, N. M. Novikovskiy, S. Grundmann, G. Kastirke, S. Eckart, F. Trinter, J. Rist, A. Hartung, D. Trabert, C. Janke, G. Nalin, M. Pitzer, S. Zeller, F. Wiegandt, M. Weller, M. Kircher, M. Hofmann, L. Ph. H. Schmidt, A. Knie, A. Hans, L. Ben Ltaief, A. Ehresmann, R. Berger, H. Fukuzawa, K. Ueda, H. Schmidt-Böcking, J. B. Williams, T. Jahnke, R. Dörner, M. S. Schöffer, Ph. V. Demekhin. 2021-06-27. Fourfold Differential Photoelectron Circular Dichroism. https://doi.org/10.1103/physrevlett.127.103201

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