Optical Study of Electronic Structure of Graphite
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- Sato Yoshiki
- Japan Atomic Energy Research Institute
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Abstract
Reflectance spectra of pyrolytic graphite are measured in the range 0.13 to 0.006 eV. The results are analyzed by a Kramers-Kronig relation to determine the complex dielectric constant ε(ω)=ε1+iε2 and energy loss function. Structures in ε2 are all identified with interband transitions between the doubly degenerate levels at the points K and H of the Brillouin zone split by the effect of spin-orbit interaction. From the above fact, the strength of the coupling λ and the band parameter Δ are estimated as 0.004 eV (at the point K) or 0.0023 eV (at the point H) and -0.016 eV, respectively. Two peaks observed in -Im ε−1 are interpreted as plasma frequencies of free electrons at the Fermi surface perpendicular and parallel to the crystallographic c axis.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 24 (3), 489-492, 1968
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390001204193610752
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- NII Article ID
- 40018663519
- 130003734245
- 210000080386
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- NII Book ID
- AA00704814
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- BIBCODE
- 1968JPSJ...24..489S
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 8501550
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed