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The Dielectric Tensor Components of Czochralski‐Grown 2:1 Mullite Single Crystals
Author(s) -
Büchner U.,
Guse W.
Publication year - 1977
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220800224
Subject(s) - mullite , dielectric , materials science , tensor (intrinsic definition) , anisotropy , condensed matter physics , band gap , crystallography , optics , optoelectronics , chemistry , physics , geometry , mathematics , composite material , ceramic
Electron energy loss measurements up to 40 eV have been performed in order to characterize the dielectric properties of 2:1 mullite single crystals. The dielectric tensor components were determined by application of the Kramers‐Kronig analysis. A band gap of (7.7 ± 0.2) eV was found. The results show a distinct anisotropic electronic structure, which is related to the crystallographic details of the 2:1 mullite.