Attosecond electron–spin dynamics in Xe 4d photoionization

Creator/Principal investigator(s):

Shiyang Zhong - Lund University, Department of Physics

Description:

We study photoionization time delays in Xe in the 70-100 eV range by combining attosecond interferometry with coincidence spectroscopy. Supported by calculations using the relativistic random phase approximation, we identify two interfering ionization processes: the giant dipole resonance due to collective effects in 4d to continuum f excitation with a fast decay time of a few tens of attoseconds and a narrow resonance at threshold induced by spin-flip transitions, with much longer decay time of several hundreds attoseconds. Our results provide new insight into the complex electron-spin dynamics of photo-induced phenomena.

Principal organisation:

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Responsible department/unit:

Lund University, Department of Physics

Creator/Principal investigator(s):

Shiyang Zhong - Lund University, Department of Physics

Identifiers:

SND-ID: 2020-64

Description:

We study photoionization time delays in Xe in the 70-100 eV range by combining attosecond interferometry with coincidence spectroscopy. Supported by calculations using the relativistic random phase approximation, we identify two interfering ionization processes: the giant dipole resonance due to collective effects in 4d to continuum f excitation with a fast decay time of a few tens of attoseconds and a narrow resonance at threshold induced by spin-flip transitions, with much longer decay time of several hundreds attoseconds. Our results provide new insight into the complex electron-spin dynamics of photo-induced phenomena.

Language:

English

Funding:

Swedish Research Council

European Research Council — Ref. PALP-33925

Knut and Alice Wallenberg Foundation

Olle Engkvist’s Foundation

Contact for questions about the data:

Anne L'huillier

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Publications

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Shiyang Zhong, Jimmy Vinbladh, David Busto, Richard J. Squibb, Marcus Isinger, Lana Neoricic, Hugo Laurell, Robin Weissenbilder, Cord L. Arnold, Raimund Feifel, Jan Marcus Dahlstrom, Goran Wendin, Mathieu Gisselbrecht, Eva Lindroth, and Anne L’Huillier, Attosecond electron–spin dynamics in Xe 4d photoionization, submitted to Nature Communications.
DOI: https://doi.org/10.1038/s41467-020-18847-1

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Version 1:

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Attosecond electron–spin dynamics in Xe 4d photoionization

Suggested citation:

Shiyang Zhong. Lund University, Department of Physics (2020). <em>Attosecond electron–spin dynamics in Xe 4d photoionization</em>. Swedish National Data Service. Version 1. <a href="https://doi.org/10.5878/rhak-nd96">https://doi.org/10.5878/rhak-nd96</a>

Creator/Principal investigator(s):

Shiyang Zhong - Lund University, Department of Physics

Description:

The dataset includes the recorded electron time of flight (seqxx.csv) and electron kinetic energy (seqxxe.csv) for each laser shot. Scan01, 03, 04, 06, 07 is RABBIT scan in Xenon and Scan 02, 05 is RABBIT scan in Neon.

Data format / data structure:

Numeric

Published: 2020-10-07
Last updated: 2020-10-07