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Berlin 2015 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 79: Quantum information systems: Si vacancies and NV centers (with TT)

HL 79.3: Vortrag

Donnerstag, 19. März 2015, 15:30–15:45, ER 164

Coherent Spin Manipulation of Si-Vacancies in Silicon Carbide at Ambient Conditions — •Dmitrij Simin1, Andreas Sperlich1, Victor Soltamov2, Pavel Baranov2, Georgy Astakhov1, and Vladimir Dyakonov1,31Experimental Physics VI, Julius Maximilian University of Wuerzburg, 97074 Wuerzburg — 2Ioffe Physical-Technical Institute, 194021 St. Petersburg, Russia — 3ZAE Bayern, 97074 Wuerzburg

For already over two decades, quantum information processing has been the hot topic in the field of information theory. To recognize and to employ the most suitable material and information carrier from the vast amount of possibilities is the declared goal of ongoing research activities all over the world. Among others, a promising candidate are Si-vacancies in Silicon Carbide [1], where spin control has been successfully conducted at ambient conditions [2, 3]. In our recent work we go one step further and present the successful time-resolved manipulation of the spin of the Si-Vacancies at ambient conditions using the pulsed-ODMR technique. We observed Rabi-oscillations in an ensemble of defects and determined spin-relaxation properties, demonstrating high potential of SiC for various quantum applications.

[1] D. Riedel et al., Phys. Rev. Lett. 109, 226402 (2012)

[2] H. Kraus et al., Nat. Phys. 10, 157-162 (2014)

[3] H. Kraus et al., Sci. Rep. 4, 5303 (2014)

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