Redetermination of the Dielectric Function of Graphite
Author:
- 1 October 1975
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 71 (2) , 609-614
Abstract
The dielectric functions ϵ| arid ϵ⟂ of graphite were redetermined by electron energy loss spectroscopy. At 11 eV a strong maximum in Im (ϵ|)is obtained, which is in accordance with earlier electron energy loss experiments, but in disagreement with recent reflectance measurements. A detailed discussion of uncertainties in the energy loss function Im(‐ 1/ϵ|) and in the Kramers‐Kronig analysisconfirms, that the 11 eV‐maximum of Im (ϵ|) is established beyond experimental error. Our ϵ| data are in agreement with earlier electron energy loss and optical results.Keywords
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