Bugnet, M., Ederer, M., Lazarov, V. K. orcid.org/0000-0002-4314-6865 et al. (4 more authors) (2021) Direct mapping of electronic orbitals in graphene using electron energy-loss spectroscopy. [Preprint]
Abstract
The spatial distributions of anti-bonding $\pi^\ast$ and $\sigma^\ast$ states in epitaxial graphene multilayers are mapped using electron energy-loss spectroscopy in a scanning transmission electron microscope. Inelastic channeling simulations validate the interpretation of the spatially-resolved signals in terms of electronic orbitals, and demonstrate the crucial effect of the material thickness on the experimental capability to resolve the distribution of unoccupied states. This work illustrates the current potential of core-level electron energy-loss spectroscopy towards the direct visualization of electronic orbitals in a wide range of materials, of huge interest to better understand chemical bonding among many other properties at interfaces and defects in solids.
Metadata
Item Type: | Preprint |
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Authors/Creators: |
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Keywords: | cond-mat.mtrl-sci,cond-mat.mes-hall |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 08 Jun 2023 23:16 |
Last Modified: | 02 Apr 2025 23:30 |
Status: | Published |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:200193 |