Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 92, Issue 9, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0055435
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Funding
- JSPS KAKENHI [15H03676, 20H04453]
- Research Grants of the Mitsubishi Foundation
- Murata Science Foundation
- Research Foundation for Opto-Science and Technology
- Grants-in-Aid for Scientific Research [20H04453, 15H03676] Funding Source: KAKEN
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This study has developed spin-resolved resonant electron energy-loss spectroscopy with high energy resolution using a GaAs/GaAsP photocathode, allowing for element- and spin-selective observations. The methodology is expected to provide novel information about elementary excitations through resonant inelastic x-ray scattering and resonant photoelectron spectroscopy.
We have developed spin-resolved resonant electron energy-loss spectroscopy with the primary energy of 0.3-1.5 keV, which corresponds to the core excitations of 2p-3d absorption of transition metals and 3d-4f absorption of rare-earths, with the energy resolution of about 100 meV using a spin-polarized electron source as a GaAs/GaAsP strained superlattice photocathode. Element- and spin-selective carrier and valence plasmons can be observed using the resonance enhancement of core absorptions and electron spin polarization. Furthermore, bulk-sensitive electron energy-loss spectroscopy spectra can be obtained because the primary energy corresponds to the mean free path of 1-10 nm. The methodology is expected to provide us with novel information about elementary excitations by resonant inelastic x-ray scattering and resonant photoelectron spectroscopy. Published under an exclusive license by AIP Publishing
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