Abstract
A precision plunger set-up was used to determine in time-differential measurements of hyperfine interactions the degree of polarization of 1s- and 2s-electrons in H- and Li-like oxygen ions on their emergence from magnetized Ni- and Gd-layers into vacuum. In addition a time-integral measurement with Fe-layers served to obtain the polarization of 2s-electrons only. For all three ferromagnetic materials the degree of polarization of 2s-electrons is found to be twice as large as for 1s-electrons. The data are discussed in the context of transient magnetic fields and their underlying polarization mechanism.
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The authors thank the operating staff of the tandem accelerator for providing excellent beam conditions. Support by the BMFT and the Deutsche Forschungsgemeinschaft is acknowledged.
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Kremeyer, S., Speidel, K.H., Jessensky, O. et al. Hyperfine interaction studies on swift O-ions emerging with polarized electrons from ferromagnetic layers into vacuum. Z. Physik A - Hadrons and Nuclei 348, 49–56 (1994). https://doi.org/10.1007/BF01291652
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DOI: https://doi.org/10.1007/BF01291652