Abstract
Energy loss spectra of anthracene single crystals corresponding to the dielectric tensor elements ɛ xx , ɛ yy and ɛ zz were measured with 60 keV electrons, after having fixed the main axes of the dielectric tensor corresponding to ɛ xx and ɛ zz . The real and imaginary parts of the dielectric tensor elements are derived from the loss functions by a Kramers-Kronig-analysis.
The results are compared with those obtained by other autors and with measurements on graphite.
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The author is indebted to Prof. H. Raether for suggesting this problem and for supporting this work, and to Dr. K. Zeppenfeld for discussions.
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Venghaus, H. The dielectric tensor components of anthracene derived from energy loss experiments. Z. Physik 239, 289–299 (1970). https://doi.org/10.1007/BF01398239
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DOI: https://doi.org/10.1007/BF01398239