Optical Constants of Gray Tin Single Crystals from 1.18 to 4.95 eV
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概要
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The optical constants of gray tin single crystals, i.e., the real (ε_1) and imaginary (ε_2) parts of the dielectric constant, were obtained in the region from 1.18 to 4.95 e V from measurements of the ratio R_p/R_s for two different angles of incidence. Measurement were made on the surfaces of growth at 278 K. Structure in ε_2(ω) was observed at 1.25, 1.65, 2.25, 3.02, and 4.2ev. The empirical pseudopotential method was to compute electronic band structure. The resulting energy bands were then used calculate the imaginary part of the dielectric constant as a function of photon energy. Comparison between experimental results and optical interband transitions are examined.
- 社団法人日本物理学会の論文
- 1971-12-05
著者
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HANYU Takaaki
Department of Physics,Faculty of Science,Tokyo Metropolitan University
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Hanyu Takaaki
Department Of Physics Faculity Of Science Tokyo Metropolitan University
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Hanyu Takaaki
Department Of Physics Tokyo Mertopoltian University
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