Spectroscopic identification of shallow muonium acceptors in Si0.06Ge0.94

We report Muon Spin Resonance spectra for Si0.06Ge0.94 that can be attributed to undissociated shallow muonium acceptors. This effective mass acceptor state is a paramagnetic center with the core consisting of either the negative charge state of muonium trapped in a tetrahedral interstitial void or...

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Bibliographic Details
Published in:Applied physics letters 2014-09, Vol.105 (12)
Main Authors: Carroll, B. R., Lichti, R. L., Mengyan, P. W., Baker, B. B., Celebi, Y. G., King, P. J. C., Chow, K. H., Yonenaga, I.
Format: Article
Language:English
Subjects:
Applied physics
Muonium
Organic chemistry
Spin resonance
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Summary:We report Muon Spin Resonance spectra for Si0.06Ge0.94 that can be attributed to undissociated shallow muonium acceptors. This effective mass acceptor state is a paramagnetic center with the core consisting of either the negative charge state of muonium trapped in a tetrahedral interstitial void or a negatively charged Si-Mu complex. Two shallow acceptors are observed with differing hyperfine interactions and symmetries suggesting two preferential sites with different local chemical environments, implying that both states are present.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4896343