We have constructed a UHV apparatus for
soft x-ray spectroscopic studies of solids and surfaces at the beamline BL27SU
in SPring-8. A newly developed flat field spectrometer with a CCD detector is
equipped for soft x-ray emission spectroscopy (SXES). The focused beam, less
than 10mm in vertical direction,
enables us to take entrance slit away, and to achieve high detection efficiency
without loss of incident beam. The energy resolution (E/DE) of 1000 is realized in the energy
range of 200-900 eV. An electron energy analyzer, SES2002 (Gammadata Scienta),
is also equipped for photoemission spectroscopy (PES). A novel undulator called
gFigure-8h at this beamline supplies both horizontally and vertically polarized
soft x-rays so that we can get symmetry resolved SXES and PES spectra by
changing the polarization without rotating the spectrometer and the analyzer.
We will show symmetry-resolved SXES and PES spectra, and discuss the advantage
of the experimental configuration of the apparatus.
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