Published September 10, 2020
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Revealing Hidden Orbital Pseudospin Texture with Time-Reversal Dichroism in Photoelectron Angular Distributions
Authors/Creators
- 1. Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- 2. Laboratoire de Physique des Matériaux et Surfaces,CY Cergy Paris Université, 95031 Cergy-Pontoise, France; New Technologies-Research Center, University of West Bohemia, 30614 Pilsen, Czech Republic
- 3. Stanford Institute for Materials and Energy Sciences (SIMES),SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- 4. Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany; Department of Applied Physics, KTH Royal Institute of Technology,Hannes Alfvéns väg 12, 114 19 Stockholm, Sweden
- 5. Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 11, 81377 München, Germany
- 6. Laboratoire de Physique des Matériaux et Surfaces,CY Cergy Paris Université, 95031 Cergy-Pontoise, France; LIDYL, CEA, CNRS (UMR 9222), Université Paris-Saclay,CEA Saclay, F-91191, Gif-sur-Yvette Cedex, France
- 7. New Technologies-Research Center, University of West Bohemia, 30614 Pilsen, Czech Republic
Description
Angle-resolved photoemission spectroscopy (ARPES) of bulk 2H-WSe2 for different crystal orientations linked to each other by time-reversal symmetry. This dataset supplements a manuscript, and was used to measure a new observable called time-reversal dichroism in photoelectron angular distributions (TRDAD), which quantifies the modulation of the photoemission intensity upon effective time-reversal operation. Experimental results are in quantitative agreement with both tight-binding model and state-of-the-art fully relativistic calculations performed using the one-step model of photoemission, unambiguously demonstrating that TRDAD reveals its orbital pseudospin texture counterpart.
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Related works
- Is supplement to
- Preprint: arXiv:2006.01657v2 (arXiv)
- Journal article: 10.1103/PhysRevLett.125.216404 (DOI)