Identification of diluted small defect clusters in silicon by electron paramagnetic resonance

Abstract

The possibilities to identify small diluted paramagnetic cluster defects in solids by Electron Paramagnetic Resonance are demonstrated in two examples: the Mn40 cluster and a Cu-Au cluster in silicon crystals. A comprehensive picture of the clusters can be given containing the chemical nature of the constituents, the spatial arrangement, the charge states and the electronic structure.