Yuan, Jun orcid.org/0000-0001-5833-4570, Lloyd, Sophia Marriott and Babiker, Mohamed orcid.org/0000-0003-0659-5247 (2013) Chiral-specific electron-vortex-beam spectroscopy. Physical Review A. 031801. ISSN 1094-1622
Abstract
Chiral electron-vortex beams, carrying a well-defined orbital angular momentum (OAM) about the propagation axis, are potentially useful as probes of magnetic and other chiral materials. We present an effective operator, expressible in a multipolar form, describing the inelastic processes in which electron-vortex beams interact with atoms, including those present in Bose-Einstein condensates, involving exchange of OAM. We show clearly that the key properties of the processes are dependent on the dynamical state and location of the atoms involved as well as the vortex-beam characteristics. Our results can be used to identify scenarios in which chiral-specific electron-vortex spectroscopy can probe magnetic sublevel transitions normally studied using circularly polarized photon beams with the advantage of atomic-scale spatial resolution.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 17 Oct 2013 15:14 |
Last Modified: | 10 Nov 2024 01:15 |
Published Version: | https://doi.org/10.1103/PhysRevA.88.031801 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevA.88.031801 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:76721 |
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