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A NEGATIVE SPIN-POLARIZATION STRUCTURE OF Ni(110): PROBED BY SPIN- AND ANGLE-RESOLVED PHOTOELECTRON SPECTROSCOPY

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  • S. QIAO

    (Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama 2-313, Higashi-Hiroshima, Hiroshima 739-8526, Japan)

  • A. KIMURA

    (Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima, Hiroshima 739-8526, Japan)

  • H. NARITA

    (Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima, Hiroshima 739-8526, Japan)

  • K. YAJI

    (Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima, Hiroshima 739-8526, Japan)

  • E. KOTANI

    (Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima, Hiroshima 739-8526, Japan)

  • K. SHIMADA

    (Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama 2-313, Higashi-Hiroshima, Hiroshima 739-8526, Japan)

  • H. NAMATAME

    (Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama 2-313, Higashi-Hiroshima, Hiroshima 739-8526, Japan)

  • M. TANIGUCHI

    (Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama 2-313, Higashi-Hiroshima, Hiroshima 739-8526, Japan;
    Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima, Hiroshima 739-8526, Japan)

  • A. HARASAWA

    (Synchrotron Radiation Laboratory, Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8581, Japan)

  • T. KINOSHITA

    (Synchrotron Radiation Laboratory, Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8581, Japan)

  • A. KAKIZAKI

    (Synchrotron Radiation Laboratory, Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8581, Japan)

Abstract

We already reported the spin- and angle-resolved photoelectron measurements of Ni(110),Ni(110)-p(2 × 1)OandNi(110)-c(2 × 2)Salong the$\bar\Gamma \bar S$line of the Ni(110) surface Brillouin zone using He I radiation. We found that the structure at about 1.3 eV binding energy showed unusual character near the$\bar S$point. The spin polarization of this structure was observed to be negative. After the adsorption of oxygen and sulfur on the Ni(110) surface, the degree of negative spin polarization was found to decrease. To study the property of this state, that it is a bulk or surface-related, and to clarify the origin of the negative polarization, we performed spin- and angle-resolved photoemission measurements for Ni(110) along the LW line of its bulk Brillouin zone. The results show that this negative polarization structure can be attributed to a surface state near the$\bar S$point.

Suggested Citation

  • S. Qiao & A. Kimura & H. Narita & K. Yaji & E. Kotani & K. Shimada & H. Namatame & M. Taniguchi & A. Harasawa & T. Kinoshita & A. Kakizaki, 2002. "A NEGATIVE SPIN-POLARIZATION STRUCTURE OF Ni(110): PROBED BY SPIN- AND ANGLE-RESOLVED PHOTOELECTRON SPECTROSCOPY," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(02), pages 1287-1290.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:02:n:s0218625x02003640
    DOI: 10.1142/S0218625X02003640
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