Alves Do Nascimento, Júlio, Hasnip, Philip James orcid.org/0000-0002-4314-4093, Cavill, Stuart Alan et al. (5 more authors) Theory of momentum-resolved magnon electron energy loss spectra: The case of Yttrium Iron Garnet. Working Paper. Arxiv (Cornell University) (Unpublished)
Abstract
We explore the inelastic spectra of electrons impinging in a magnetic system. The methodology here presented is intended to highlight the charge-dependent interaction of the electron beam in a STEM-EELS experiment, and the local vector potential generated by the magnetic lattice. This interaction shows an intensity $10^{-2}$ smaller than the purely spin interaction, which is taken to be functionally the same as in the inelastic neutron experiment. On the other hand, it shows a strong scattering vector dependence ($\kappa^{-4}$) and a dependence with the relative orientation between the probe wavevector and the local magnetic moments of the solid. We present YIG as a case study due to its high interest by the community.
Metadata
Authors/Creators: |
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Keywords: | Magnonics, Inelastic scattering, EELS, YIG | ||||||
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) > The York JEOL Nanocentre |
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Funding Information: |
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Depositing User: | Pure (York) | ||||||
Date Deposited: | 23 Jan 2024 17:20 | ||||||
Last Modified: | 15 Feb 2024 00:21 | ||||||
Status: | Unpublished | ||||||
Publisher: | Arxiv (Cornell University) | ||||||
Refereed: | No |
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