Magnetic probing depth in spin-polarized secondary electron spectroscopy
- 30 March 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 58 (13), 1352-1354
- https://doi.org/10.1103/physrevlett.58.1352
Abstract
We have studied the temperature dependence and the sensitivity to oxygen adsorption of the spin polarization of low-energy secondary electrons from Ni(110). Both types of measurements show a strong surface sensitivity, suggesting a mean magnetic probing depth of only three to four atomic layers, contrary to estimates based on the universal escape-depth curve.Keywords
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