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Demonstration of angular-momentum-resolved electron energy-loss spectroscopy

Author

Listed:
  • A. H. Tavabi

    (Forschungszentrum Jülich)

  • P. Rosi

    (Via G. Campi 213/A)

  • G. Bertoni

    (Via G. Campi 213/A)

  • E. Rotunno

    (Via G. Campi 213/A)

  • L. Belsito

    (Via P. Gobetti 101)

  • A. Roncaglia

    (Via P. Gobetti 101)

  • S. Frabboni

    (Via G. Campi 213/A
    Via G. Campi 213/A)

  • G. C. Gazzadi

    (Via G. Campi 213/A)

  • E. Karimi

    (University of Ottawa)

  • P. Tiemeijer

    (Thermo Fisher Scientific)

  • R. E. Dunin-Borkowski

    (Forschungszentrum Jülich)

  • V. Grillo

    (Via G. Campi 213/A)

Abstract

Rotational invariance is a fundamental aspect of symmetry in scattering processes from atomic potentials. Here, we present an approach for measuring orbital angular momentum (OAM), a key descriptor of rotational symmetry, during measurements of atomic transitions. We use an electron optical OAM sorter in combination with electron energy-loss spectroscopy and model-based fitting to separately measure the π* and σ* antibonding transitions in hexagonal boron nitride on the atomic scale. This approach also offers prospects for efficient and atomically-resolved magnetic chiral dichroism measurements.

Suggested Citation

  • A. H. Tavabi & P. Rosi & G. Bertoni & E. Rotunno & L. Belsito & A. Roncaglia & S. Frabboni & G. C. Gazzadi & E. Karimi & P. Tiemeijer & R. E. Dunin-Borkowski & V. Grillo, 2025. "Demonstration of angular-momentum-resolved electron energy-loss spectroscopy," Nature Communications, Nature, vol. 16(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-60804-3
    DOI: 10.1038/s41467-025-60804-3
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