TY  - JOUR
AB  - Photoelectrons ejected from cesium atoms by circularly polarized light of certain wavelengths are highly spinpolarized according to Fano’s theory. Measurements of the spinpolarization of photoelectrons along the wavelength spectrum are reported. The highest degree of spinpolarization obtained experimentally is 100%. Our results reveal a small deviation from the theoretically predicted spinpolarization. Apart from giving information on the influence of spin-orbit interaction on the photoionization process, the Fano-effect turns out to be a simple and efficient method for producing polarized electron beams. Though not designed as a polarized electron source, our present apparatus yields a beam of 0.3x10(-10) Ampere with a polarization of 81 +- 3% when a broad unfiltered spectral band is irradiated.
DA  - 1970
LA  - ger
M2  - 231
PY  - 1970
SN  - 0044-3328
SP  - 231-240
T2  - Zeitschrift für Physik
TI  - Elektronen-Spinpolarisation bei der Photoionisation unpolarisierter Cäsiumatome mit zirkularpolarisiertem Licht: Untersuchung des Fano-Effekts am Cäsium
UR  - https://nbn-resolving.org/urn:nbn:de:0070-bipr-13271
Y2  - 2024-11-22T08:51:08
ER  -