Lyon, Keenan, Bergman, Anders, Zeiger, Paul et al. (4 more authors) (2021) Magnon diffuse scattering in scanning transmission electron microscopy. [Preprint]
Abstract
We present a theory and a simulation of thermal diffuse scattering due to the excitation of magnons in scanning transmission electron microscopy. The calculations indicate that magnons can present atomic contrast when detected by electron energy-loss spectroscopy using atomic-size electron beams. The results presented here indicate that the intensity of the magnon diffuse scattering in bcc iron at 300~K is 4 orders of magnitude weaker than the intensity of thermal diffuse scattering arising from atomic vibrations. In an energy range where the phonon and magnon dispersions do not overlap, a monochromated scanning transmission electron microscope equipped with direct electron detectors for spectroscopy is expected to resolve the magnon spectral signatures.
Metadata
Item Type: | Preprint |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | 6 pages, 3 figures |
Keywords: | cond-mat.mtrl-sci |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number THE ROYAL SOCIETY IES\R1\211016 EPSRC EP/V048767/1 |
Depositing User: | Pure (York) |
Date Deposited: | 09 Jun 2023 23:12 |
Last Modified: | 22 Nov 2024 00:12 |
Status: | Published |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:200318 |