Origin of Threefold Periodicity in High-Resolution Transmission Electron Microscopy Images of Thin Film Cubic SiC Full article
Journal |
Microscopy and Microanalysis
ISSN: 1431-9276 , E-ISSN: 1435-8115 |
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Output data | Year: 1999, Volume: 5, Number: 6, Pages: 420-427 Pages count : 8 DOI: 10.1017/S1431927699990487 | ||||||
Tags | 9R-SiC polytype, High-resolution transmission electron microscopy, Molecular beam epitaxy, SiC, Twins | ||||||
Authors |
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Affiliations |
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Funding (1)
1 | German Research Foundation | 196 (No. A03) |
Abstract:
High-resolution transmission electron microscopy (HRTEM) images of the [1–10] zone of cubic SiC layers grown by molecular beam epitaxy (MBE) often reveal regions of material exhibiting an unusual threefold periodicity. The same contrast was found in earlier works of Jepps and Page, who attributed this contrast in HRTEM images of polycrystalline SiC to the 9R-SiC polytype. In this report we demonstrate by HRTEM image simulations that the model of the 9R polytype and an alternative twinning model can fit qualitatively the experimental HRTEM images. However, by comparing the fast Fourier transform (FFT) patterns of the experiments and the simulations, as well as by using dark-field imaging, we show unambiguously that only the model of overlapping twinned 3C-SiC crystals fully agrees with the experiments.
Cite:
Kaiser U.
, Chuvilin A.L.
, Brown P.D.
, Richter W.
Origin of Threefold Periodicity in High-Resolution Transmission Electron Microscopy Images of Thin Film Cubic SiC
Microscopy and Microanalysis. 1999. V.5. N6. P.420-427. DOI: 10.1017/S1431927699990487 WOS Scopus РИНЦ
Origin of Threefold Periodicity in High-Resolution Transmission Electron Microscopy Images of Thin Film Cubic SiC
Microscopy and Microanalysis. 1999. V.5. N6. P.420-427. DOI: 10.1017/S1431927699990487 WOS Scopus РИНЦ
Dates:
Submitted: | Apr 21, 1999 |
Accepted: | Jul 20, 1999 |
Published print: | Nov 1, 1999 |
Published online: | Jan 29, 2003 |
Identifiers:
Web of science | WOS:000083537400003 |
Scopus | 2-s2.0-0038931061 |
Elibrary | 27562285 |
Chemical Abstracts | 2000:364812 |
Chemical Abstracts (print) | 133:47456 |
OpenAlex | W1966827777 |