Photoelectron spin-polarisation measurements of In(5s2 5p) 2P,12 were performed in the autoionisation region of the 5s5p2-configuration using monochromatic circularly polarised synchrotron radiation at the electron storage ring BESSY. The autoionising levels are analysed in terms of partial cross section, dipole matrix elements and phase-shift differences. In addition the measured photoelectron...

The spin-polarisation parameters for photoelectrons from lead atoms (6?6p2)J,0 were measured in the wavelength range between the second threshold [Pb+ (6s26p) 2P3i2] and 100 nm in an angle-resolving experiment using circularly polarised vuv-radiation from the storage ring BESSY. Beyond this threshold (2 = 135.3 nm), the photoionisation cross section is strongly perturbed by autoionisation reson...

The photoelectrons emitted by lead atoms exposed to circularly-polarised vuv radiation are partially spin polarised. Unlike the photoionisation cross section, the measured polarisation does not show autoionisation resonances as a function of wavelength. The polarisation and the known cross section results together yield new absorption data, which can be compared with the oscillator strengths of...