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Cited by 892

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

Optical Properties of Graphite

Taft, E. A., Philipp, H. R.·1965·Physical Review
DOI 10.1103/physrev.138.a197
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Abstract

The complex dielectric constant $\ensuremath{\epsilon}(\ensuremath{\omega})={\ensuremath{\epsilon}}_{1}+i{\ensuremath{\epsilon}}_{2}$ and associated functions are derived by application of the Kramers-Kronig relation to reflectance data for graphite obtained in the energy range to 26 eV. It is possible to divide the optical properties into two spectral regions. In the range 0 to 9 eV, intra- and interband transitions involve mainly the $\ensuremath{\pi}$ bands. At higher energies, a broad absorption peak near 15 eV is associated with interband transitions involving the 3 $\ensuremath{\sigma}$ electrons per atom. This viewpoint is strongly supported by evaluation of the sum rules for ${n}_{\mathrm{eff}}$. Plasma resonances which produce peaks in the energy-loss function $\ensuremath{-}\mathrm{Im}{\ensuremath{\epsilon}}^{\ensuremath{-}1}$ at 7 and 25 eV are identified and described physically. At low energies, structure in the reflectance curve near 0.8 eV is attributed to the onset of transitions between the ${E}_{2}$ and ${E}_{3}$ bands at the point $K$. This yields a value for ${\ensuremath{\gamma}}_{1}$ of \ensuremath{\approx}0.4 eV.

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Metadata

Authors
Taft, E. A., & Philipp, H. R.
Venue
Physical Review
Publisher
American Physical Society (APS)
Published
1965-04-05
Volume
138
Issue
1A
Pages
A197-A202
ISSN
0031-899X (ISSN-L)
DOI
10.1103/physrev.138.a197
OpenAlex
W1998368443
Cited by
892
References
17
FWCI
19.16
Type
journal article
Language
en
Open access
closed

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