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- Umeda, T., et al.
(author)
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EPR and theoretical studies of positively charged carbon vacancy in 4H-SiC
- 2004
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In: Physical Review B. Condensed Matter and Materials Physics. - : American Physical Society. - 1098-0121 .- 1550-235X. ; 70:23
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Journal article (peer-reviewed)abstract
- The carbon vacancy is a dominant defect in 4H-SiC, and the "E15" electron-paramagnetic-resonance (EPR) spectrum originates from positively charged carbon vacancies (VC+) at quasicubic sites. The observed state for EI5, however, has been attributed to a motional-averaged state with the C3v symmetry, and its true atomic structure has not been revealed so far. We here report low temperature (
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