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What is the nature of the C-C complex in silicon? Insights from electronic structure calculations


What is the nature of the C-C complex in silicon? Insights from electronic structure calculations

cc complex defect in silicon

In this work we studied the C-C defect complex in silicon. We used different approaches in such a way to identity the defect configuration responsible for the strong light emission in irradiated silicon. Our clues point towards a particular configuration, even if we suspect that in a damaged sample different type of complexes could be… Read More

Optical properties of extended systems within a current-current response formalism: tips and tricks


Optical properties of extended systems within a current-current response formalism: tips and tricks

velocityposter

In this work we compare the optical absorption of extended systems calculated starting from the density-density and current-current linear response formalisms within the equilibrium many-body perturbation theory(MBPT). We show how, using the latter, one can incur in errors due to quasiparticle lifetimes, electron-hole interaction or the presence of a Drude tail. These errors are found… Read More

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