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


Carroll B. R. , Lichti R. L. , Mengyan P. W. , Baker B. B. , Celebi Y. G. , King P. J. C. , ...Daha Fazla

Applied Physics Letters, cilt.105, 2014 (SCI Expanded İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 105 Konu: 12
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1063/1.4896343
  • Dergi Adı: Applied Physics Letters

Özet

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. (C) 2014 AIP Publishing LLC.