Local Electronic Structure of Al Nanocluster Array Fabricated on Si(111)$7 \times 7$ Surface

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概要

• 論文の詳細を見る

• We have applied scanning tunneling microscopy (STM), scanning tunneling spectroscopy (STS) as well as current imaging tunneling spectroscopy (CITS) 1 to an Al nanocluster periodic array of a submonolayer-Al/Si(111) system. These clusters become visible with an Al deposition thickness of 0.24–0.5 ML at a substrate temperature of 550 °C. The site-resolved STS spectra of the Al nanocluster at 78 K show an insulating energy gap of 3.4 eV. In the CITS images, we have found different features of space-resolved tunneling current for the filled and empty states, which markedly depend on atomic sites and also on inequivalent half unit cells.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2006-03-15

著者

• Namatame Hirofumi

  Hiroshima Synchrotron Radiation Center Hiroshima Univ.

• KIMURA Akio

  Graduate School of Science, Hiroshima University

• TANIGUCHI Masaki

  Graduate School of Science, Hiroshima University

• Qiao Shan

  Hiroshima Synchrotron Radiation Center Hiroshima University

• Nakatake Masashi

  Hiroshima Synchrotron Radiation Center Hiroshima University

• Narita Hisashi

  Graduate School Of Environmental Earch Science Hokkaido University

• Xie Tian

  Hiroshima Synchrotron Radiation Center, Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan

• Moko Tsutomu

  Graduate School of Science, Hiroshima Univerity, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan

• Qiao Shan

  Hiroshima Synchrotron Radiation Center, Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan

• Narita Hisashi

  Graduate School of Science, Hiroshima Univerity, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan

• Nakatake Masashi

  Hiroshima Synchrotron Radiation Center, Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan

• Namatame Hirofumi

  Hiroshima Synchrotron Radiation Center, Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan

• Namatame Hirofumi

  Hiroshima Synchrotron Radiation Center (HSRC), Hiroshima University, Higashihiroshima, Hiroshima 739-0046, Japan

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