Identification of Anomalous Muonium in Semiconductors as a Vacancy-Associated Center

Abstract

With use of a first-principles unrestricted Hartree-Fock cluster procedure, it is demonstrated that a (${\mu }^{+}{e}^{-}$) center trapped near a vacancy has all the features of the hyperfine tensors for anomalous muonium in diamond and silicon obtained from muon-spin-rotation measurements.