Regensburg 2016 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 24: Carbon-based Nanostructures

HL 24.1: Vortrag

Dienstag, 8. März 2016, 09:30–09:45, H14

High-frequency optically detected magnetic resonance of nitrogen-related centers in diamond — •Dion Braukmann¹, Jörg Debus¹, Vitalii Yu. Ivanov², Dariya Savchenko³, Dmitri R. Yakovlev^1,4, Marek Godlewski², and Manfred Bayer^1,4 — ¹Experimentelle Physik 2, Technische Universität Dortmund, 44227 Dortmund, Germany — ²Institute of Physics, Polish Academy of Sciences, 02668 Warsaw, Poland — ³Institute of Physics, AS CR, 18221 Prague, Czech Republic — ⁴Ioffe Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia

Impurities in diamond have been studied in recent years on account of possible applications in quantum information processing, spin-electronics and, e.g., biophotonics. The most promising impurity is the negatively charged nitrogen-vacancy (NV⁻) center. Particular focus has been drawn on its optical and magnetic properties. The majority of studies neglects however the interplay between the NV⁻ center and other, mainly nitrogen-related, impurities giving rise to extraordinary changes in the magneto-optical characteristics.
In that context, we report on spectrally resolved optically detected magnetic resonance of nitrogen-related centers in diamond crystals. The application of microwaves with 65 GHz and low power allows us to reveal resonant microwave amplification.