n-type doping of oxides by hydrogen
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17.Our pinning rule predicts H to be a shallow donor in HgO. The muonium-derived donor level is measured (Ref. 11) at i.e. below the CBM. We think this difference could arise from the formation of a bound state following the relaxation of electrons released by H donor into the CBM. The binding energy reflects the screened, long-range Coulomb interaction that is absent in our relatively small supercell calculations.
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