Abstract

Two previously unreported electron paramagnetic resonance centers of ${\mathit{C}}_{2\mathit{v}}$ symmetry, labeled Si-LAu1 and Si-LAu2, are observed in p-type gold-doped silicon after a heat treatment at 1250 \ifmmode^\circ\else\textdegree\fi{}C. For one of them, Si-LAu2, complex resolved hyperfine structure reveals the presence of two equivalent Au atoms in the complex. No hyperfine structure is resolved for Si-LAu1 and the direct involvement of Au in it has not been established. \textcopyright{} 1996 The American Physical Society.

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