Attosecond electron–spin dynamics in Xe 4d photoionization
Journal article, 2020

The photoionization of xenon atoms in the 70–100 eV range reveals several fascinating physical phenomena such as a giant resonance induced by the dynamic rearrangement of the electron cloud after photon absorption, an anomalous branching ratio between intermediate Xe+ states separated by the spin-orbit interaction and multiple Auger decay processes. These phenomena have been studied in the past, using in particular synchrotron radiation, but without access to real-time dynamics. Here, we study the dynamics of Xe 4d photoionization on its natural time scale combining attosecond interferometry and coincidence spectroscopy. A time-frequency analysis of the involved transitions allows us to identify two interfering ionization mechanisms: the broad giant dipole resonance with a fast decay time less than 50 as, and a narrow resonance at threshold induced by spin-flip transitions, with much longer decay times of several hundred as. Our results provide insight into the complex electron-spin dynamics of photo-induced phenomena.

Author

Shiyang Zhong

Lund University

Jimmy Vinbladh

Stockholm University

David Busto

Lund University

Richard J. Squibb

University of Gothenburg

Marcus Isinger

Lund University

Lana Neoričić

Lund University

Hugo Laurell

Lund University

Robin Weissenbilder

Lund University

Cord L. Arnold

Lund University

Raimund Feifel

University of Gothenburg

Jan Marcus Dahlström

Lund University

Göran Wendin

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Technology

Mathieu Gisselbrecht

Lund University

Eva Lindroth

Stockholm University

Anne L’Huillier

Lund University

Nature Communications

2041-1723 (ISSN)

Vol. 11 1 5042

Subject Categories

Atom and Molecular Physics and Optics

Other Physics Topics

Condensed Matter Physics

DOI

10.1038/s41467-020-18847-1

More information

Latest update

11/6/2020