Freiburg 2019 – wissenschaftliches Programm
Sitzungen | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
FM: Fall Meeting
FM 63: Poster: Enabling Technologies: Quantum Materials, Quantum Dots, Quantum Wires, Point Contacts and Superconducting Systems
FM 63.16: Poster
Mittwoch, 25. September 2019, 16:30–18:30, Tents
Spectroscopic investigation of the neutral charge state of the tin-vacancy centre in diamond — •Johannes Görlitz1, Dennis Herrmann1, Morgane Gandil1, Philipp Fuchs1, Gergö Thiering2, Takayuki Iwasaki3, Takashi Taniguchi4, Mutsuko Hatano3, Adam Gali2, and Christoph Becher1 — 1Fachrichtung 7.2, (Experimentalphysik), Universität des Saarlandes, Campus E2.6, 66123 Saarbrücken, Germany — 2Wigner Research Centre for Physics, Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, Hungary — 3Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan — 4Advanced Materials Laboratory, National Institute for Material Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
Colour centres in diamond, in particular the well studied nitrogen vacancy centre (NV), are highly suitable to tackle many of the challenges occuring in quantum information processing and furthermore constitute sensitive electrical and magnetic field sensors. Nevertheless there are major limitations to the usefulness of the NV centre like the severe spectral diffusion and low photon emission rates into the zero phonon line. A promising candidate in order to outperform the NV in this areas and still maintain its excellent spin coherence is the neutral tin vacancy centre (SnV(0)). Spectral diffusion should be minimized due to its inversion symmetry and theoretical ab initio calculations predict a high Debye-Waller factor and long spin coherence. We here provide experimental evidence of the SnV(0) including emission spectra and the charge transition from the negative to the neutral charge state.