Abstract

The PAC probe111In was implanted into intrinsic, n-and p-doped germanium. After removing the radiation damage by thermal annealing the samples were irradiated with different lons to study defect-acceptor pairs by means of the PAC technique. In all samples a high electric field gradient could be observed, characterized by a quadrupole interaction frequency of υQ2=415MHz and an axial symmetry (η=0). Some samples show another frequency of υQ152.5 MHz and η=0. The results give evidence for an intrinsic defect trapped at the111In probe.

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