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Regensburg 2013 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 66: Spintronics / Quantum Information: Vacancies in Diamond and SiC (jointly with HL)

TT 66.12: 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 Wrachtrup113. 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.

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