Regensburg 2013 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 95: Spintronics/Quantum information: Vacancies in diamond and SiC (HL, jointly with TT)
HL 95.12: Vortrag
Freitag, 15. März 2013, 12:30–12:45, H14
Investigations on nitrogen-vancancy center creation and its physical properties — •Denis Antonov1,2, Gabriel Bester2, and Jörg Wrachtrup1 — 13. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany — 2Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, Germany
The negatively charged nitrogen-vacancy (NV−) center embedded in extended and nanoscale diamond structures is a promising candidate for quantum information processing (QIP), magnetometry and even for biomarkers. A basic requirement for these applications is a precise prediction of the placement and a detailed understanding of the physical properties of the NV− center. Using a range of simulation techniques we consider the formation of NV− centers from the statistical standpoint, before performing accurate calculations for the optical properties of individual NV− centers. In particular, we investigate the channeling effect during shallow implantations in molecular dynamics and Monte Carlo simulations. Furthermore, a combination of a spin-polarized atomic effective pseudopotential and a configuration interaction approache is used to obtain many body effects in the excitonic spectra.