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Spin and Energy Analyzed Secondary Electron Emission from a Ferromagnet
Published
Author(s)
John Unguris, Daniel T. Pierce, A Galejs, Robert Celotta
Abstract
Measurements are presented of the energy dependence of the spin polarization of low-energy (0.5-25 eV) secondary electrons when a 500-eV primary beam is incident on an iron-based ferromagnetic glass. The polarization of the lowest-energy electrons is found to correspond to the net valence-band spin density. Possible causes for the observed decrease in polarization with increasing secondary energy are discussed. The results demostrate a mechanism for measuring surface magnetic structure with very high spatial resolution of scanning electron microscopy.
Unguris, J.
, Pierce, D.
, Galejs, A.
and Celotta, R.
(1982),
Spin and Energy Analyzed Secondary Electron Emission from a Ferromagnet, Physical Review Letters
(Accessed October 11, 2025)