HIGH-RESOLUTION, LOW-TEMPERATURE PHOTOEMISSION SPECTROSCOPY AT THE HISOR LINEAR UNDULATOR BEAMLINE

Kenya Shimada, Masashi Arita, Yukiharu Takeda, Hiroyuki Fujino, Kenichi Kobayashi, Takamasa Narimura, Hirofumi Namatame and Masaki Taniguchi
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Kenya Shimada: Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
Masashi Arita: Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
Yukiharu Takeda: Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
Hiroyuki Fujino: Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
Kenichi Kobayashi: Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
Takamasa Narimura: Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
Hirofumi Namatame: Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
Masaki Taniguchi: Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Japan;

Surface Review and Letters (SRL), 2002, vol. 09, issue 01, 529-534

Abstract: In order to study the electronic states of solids, using high-resolution, low-temperature photoemission spectroscopy (PES) with tunable photon energies, we have constructed a high-resolution undulator beamline operating in the photon-energy range 26–300 eV at the compact 700 MeV electron-storage ring HiSOR located at Hiroshima University. By way of gas-phase experiments, with photon flux larger than2 × 1010photons/s, photon-energy resolving powers ofE/ΔE > 16000and 3800 were obtained athν ~ 48eV and ~ 244 eV, respectively. High-resolution PES experiments on evaporated Au at 8 K were performed at the beamline with a total energy resolution ofΔE = 12meV athν = 48eV. Among the first experiments from the beamline, a resonant photoemission study of UNiSn is presented. The U 5f derived peak is significantly enhanced athν = 98eV.

Date: 2002
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DOI: 10.1142/S0218625X02002592

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