J.A. Barker, D. Henderson, et al.
Molecular Physics
A crystal of silicon doped with carbon enriched to 60.1% in13C was studied by μSR to determine whether13C hyperfine structure could be observed in the frequency spectra of normal muonium, Mu, or anomalous muonium, Mu*. Measurements at 100 G and 100 K with 40 million good events yielded extremely weak Mu* signals and no Mu in these data or in measurements at 10 G and 150 K. Transmission electron micrographs of this sample contained small regions showing strain contrast and structure factor contrast. Annealing the sample at 900°C for 84 hours led to featureless electromicrographs. Subsequent μSR measurements yielded a strong Mu* signal but still no Mu. No broadening due to13C was observed. © 1984 J.C. Baltzer AG, Scientific Publishing Company, and Yamada Science Foundation.
J.A. Barker, D. Henderson, et al.
Molecular Physics
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
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Physica E: Low-Dimensional Systems and Nanostructures
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