Soft X-ray Core-Level Photoemission Study of Boron Sites in Heavily Boron-Doped Diamond Films(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

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概要

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• We have performed high-resolution soft x-ray B 1s core-level photoemission spectroscopy of heavily boron-doped diamond films in order to study the chemical sites of doped-boron atoms and their relation to the superconducting transition temperature (T_c). We find that B 1s core-level spectra exhibit several fine structures and three bulk components can be resolved from photon energy dependent studies and spectral fittings. These results indicate existence of several chemical environments of doped-boron atoms. One of the bulk components having the lowest binding energy can be assigned to a signal from substitutionally doped-boron atoms. Comparisons of bulk components with T_c suggest spectroscopic evidence for the importance of substitutionally doped-boron atoms for effective carrier and superconductivity.

• 社団法人日本物理学会の論文
• 2009-03-15

著者

• Takayama Y.

  Department Of Physics Tokyo Metropolitan University

• Takayama Yasuhiro

  Mechanical Engineering Graduate School Of Engineering

• Kawarada Hiroshi

  School Of Science And Engineering Waseda University

• Kawarada Hiroshi

  School Of Science & Engineering Waseda University

• OGUCHI Tamio

  Department of Quantum Matter, ADSM, Hiroshima University

• Muro Takayuki

  Japan Synchrotron Radiation Res. Inst. Hyogo Jpn

• Takeda Yuuji

  Graduate School Of Science Osaka University

• Muraoka Yuji

  The Graduate School Of Natural Science And Technology Okayama University:research Laboratory For Sur

• Hirai Masaaki

  The Graduate School Of Natural Science And Technology Okayama University:research Laboratory For Sur

• TAKANO Yoshihiko

  National Institute for Materials Science

• Wakita Takanori

  Research Laboratory For Surface Science (rlss) Okayama University:jst Transormative Research-project

• OGUCHI Tamio

  National Research Institute for Metals

• Tabata Y

  Riken Spring-8 Center Harima Institute

• Yokoya Takayoshi

  National Institute For Materials Science

• Takano Yoshihiko

  National Inst. For Materials Sci. Ibaraki Jpn

• Oguchi Tamio

  Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter (adsm) Hiroshima Univers

• Oguchi Tamio

  Department Of Engineering Physics The University Of Electro-communications

• Yoshida Testuo

  Department Of Physics Tokyo Metropolitan University

• YOSHIDA Rikiya

  The Graduate School of Natural Science and Technology, Okayama University

• OKAZAKI Hiroyuki

  The Graduate School of Natural Science and Technology, Okayama University

• Oguchi T

  Hiroshima Univ. Hiroshima

• Hirai Masaaki

  Research Laboratory For Surface Science Faculty Of Science Okayama University

• Yoshida Rikiya

  The Graduate School Of Natural Science And Technology Okayama University

• MURAOKA Yuji

  Research Laboratory for Surface Science, Okayama University

• IRIYAMA Shingo

  School of Science and Engineering, Waseda University

• YOKOYA Takayoshi

  Research Laboratory for Surface Science, Okayama University

• Okazaki Hiroyuki

  The Graduate School Of Natural Science And Technology Okayama University

• Iriyama Shingo

  School Of Science And Engineering Waseda University

• Yoshida Tetsuo

  Department Of Physics Tokyo Metropolitan University

• OGUCHI Takehiko

  Department of Physics, Tokyo Institute of Technology Oh-okayama

• OGUCHI Takehiko

  Department of Physics, Tokyo Institute of Technology : Department of Sciences and Mathematics, The Technological University of Nagaoka

• Okazaki Hiroyuki

  The Graduate School of Science and Technology, Okayama University, Okayama 700-8530, Japan

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