Electronic transport and spin control in SiGe self-assembled quantum dots

Orateur : Soutenance de thèse de Natalia ARES (CEA/INAC/SPSMS)

Quantum spintronics aims at utilizing the quantum nature of individual spins to bring new functionalities into logic circuits. A new route to quantum spintronics based on p-type SiGe nanostructures is now being investigated. This system combines weak hyperfine interaction, which is a favourable property for long spin coherence, with strong spin-orbit coupling, which can enable fast, electrically-driven spin manipulation. I will discuss low-temperature transport experiments on quantum-dot devices based on SiGe self-assembled nanocrystals. These measurements reveal a variety of spin-related properties of the confined hole states. I will also discuss experimental progress towards more complex circuits made of multiple self-assembled nanocrystals.

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