Imaginary Part of the Dielectric Function of Sintered and Microcrystalline Cubic Boron Nitride

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概要

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• The optical reflectance of cubic boron nitride (c-BN) was measured for sintered and microcrystalline samples at room temperature in the photon energy range 5–25 eV. Kramers-Kronig analysis was performed to determine the real $\varepsilon_{1}$ and imaginary $\varepsilon_{2}$ parts of the dielectric function. The spectrum of $\varepsilon_{2}$ for sintered c-BN shows peaks at 9.05 eV and 11.7 eV and shoulders at 10 eV, 13.2 eV and 16.7 eV. This spectrum was compared with the one theoretically obtained by Tsay et al. and assignment of the structure was made. The $\varepsilon_{2}$ for microcrystalline c-BN has a broad structure with a peak at 11.7 eV.

• INSTITUTE OF PURE AND APPLIED PHYSICSの論文
• 1989-03-20

著者

• Okamoto Masaki

  Department Of Applied And Bioapplied Chemistry Graduate School Of Engineering Osaka City University

• CHAYAHARA Akiyoshi

  Government Industrial Research Institute

• Fujisawa Masami

  Synchrotron Radiation Laboratory Institute For Solid State Physics The University Of Tokyo

• Osaka Yukio

  Department Of Electrical Engineering Faculty Of Engineering Hiroshima University

• Imura Takeshi

  Department Of Electrical Engineering Faculty Of Engineering Osaka University

• YOKOYAMA Haruki

  Department of Electrical Engineering, Hiroshima University

• Hamada Tsutomu

  Department of Electrical Engineering, Hiroshima University, Saijo, Higashi- Hiroshima 724

• Chayahara Akiyoshi

  Government Industrial Research Institute, Osaka, Midorigaoka, Ikeda 563

• Imura Takeshi

  Department of Chemistry, Faculty of Engineering Science, Osaka University

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