Near Infrared Reflectivity of Graphite under Hydrostatic Pressure. II. Theoretical Foundation of Lineshape Analysis
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概要
- 論文の詳細を見る
The dielectric constant and the reflectivity of graphite under hydrostatic pressureare calculated in the photon energies from 0.6 to 1.0 eV. The Slonczewski-Weiss-McClure band model is employed together with the pressure derivatives of theband parameters given by Nagayoshi. The calculated lineshapes of the changeof optical constants due to pressure are in good agreement with the observedones by Misu et al. The trigonal warping in the band structure is found to playan essential role in the appearance of van Hove singularities in the joint densityof states as well as in the determination of optical transition probabilities. It isalso shown that the band parameter y. and its pressure derivative give the domi-nant contribution to the position of structures and their pressure dependencein the optical constant spectra in the near infrared range.
- 社団法人日本物理学会の論文
- 1979-07-15
著者
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NAKAO Kenji
Department of Electronic Engineering, Faculty of Engineering, Osaka University
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Nakao Kenji
Department Of Physics Faculty Of Science University Of Tokyo:institute Of Materials Science Universi
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