Electron paramagnetic resonance of a Au-Au pair in heat-treated silicon

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 °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. © 1996 The American Physical Society.