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High-Resolution And Low-Temperature Photoemission Spectroscopy At The Hisor Helical-Undulator Beamline

Author

Listed:
  • MASASHI ARITA

    (Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Hiroshima, Japan)

  • KENYA SHIMADA

    (Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Hiroshima, Japan)

  • HIROFUMI NAMATAME

    (Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Hiroshima, Japan)

  • MASAKI TANIGUCHI

    (Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526, Hiroshima, Japan;
    Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Hiroshima, Japan)

Abstract

We report an experimental system dedicated for high-resolution and low-temperature photoemission spectroscopy installed on the helical-undulator beamline of a compact 700 MeV electron-storage ring (HiSOR) at Hiroshima University. A 3 m off-plane Eagle normal-incidence monochromator at the beamline covers the photon-energy range ofhν = 4–40eV. From the photoemission spectra near the Fermi edge of evaporated Au film, the total energy resolution was estimated to be 4.5 and 7.5 meV athν = 7.1and 22.6 eV, respectively. We have also performed photoemission measurements of Yb metal, which demonstrated highly bulk-sensitive spectra for the excitation by low energy photon. The high-resolution photoemission spectra ofY1 - xCaxTiO3withx = 0.41in the vicinity of the boundary between the metallic and insulating phases exhibited anomalous temperature dependence in comparison with those of normal metals.

Suggested Citation

  • Masashi Arita & Kenya Shimada & Hirofumi Namatame & Masaki Taniguchi, 2002. "High-Resolution And Low-Temperature Photoemission Spectroscopy At The Hisor Helical-Undulator Beamline," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(01), pages 535-539.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:01:n:s0218625x02002609
    DOI: 10.1142/S0218625X02002609
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