Wavelength dependence of polarisation of photoelectrons ejected by unpolarised VUV radiation from argon and krypton atoms

Abstract
The spin polarisation of the photoelectrons emitted by argon and krypton atoms exposed to unpolarised VUV radiation has been measured at rate-gas resonance wavelengths in the energy range from the threshold up to 41 eV. Comparison of the wavelength dependence of the measured polarisation with theoretical results shows good agreement.