Development of hard X-ray photoelectron spectroscopy at BL29XU in SPring-8

We have realized hard X-ray (HX) photoelectron spectroscopy (PES) with high-throughput and high-energy-resolution for core level and valence band studies using high-energy and high-brilliance synchrotron radiation at BL29XU in SPring-8. Large escape depth of high-energy photoelectrons enables us to probe intrinsic bulk states almost free from surface condition. By use of a newly developed electron energy analyzer and well-focused X-rays, high-energy resolution of 75 meV (E/Delta E = 79, 000) was realized for 5.95 keV photoelectrons. (c) 2005 Elsevier B.V. All rights reserved.