Electrical control of spin relaxation time in complex quantum nanostructures

Abstract

Spin related phenomena in quantum nanostructures have attracted recently much interest due to fast growing field of spintronics. In particular complex nanostructures are important as they provide a versatile system to manipulate spin and the electronic states. Such systems can be used as spin memory devices or scalable quantum bits. We investigate the spin relaxation for an electron in a complex structure composed of a quantum dot surrounded by a quantum ring. We shown that modifications of the confinement potential result in the substantial increase of the spin relaxation time.

6 pages, 6 figures

References in corpus (6)

• Quantum Computing
• Single-shot read-out of an individual electron spin in a quantum dot
• Theory of electron spin decoherence by interacting nuclear spins in a quantum dot
• Spin properties of single electron states in coupled quantum dots
• Semiconductor quantum ring as a solid-state spin qubit
• Wave function engineering in quantum dot-ring nanostructures

Cited by in corpus (4)

• Dot-ring nanostructure: Rigorous analysis of many-electron effects
• Charge transport through a semiconductor quantum dot-ring nanostructure
• Quantum Dot-Ring Nanostructure - a Comparison of Different Approaches
• Effective tuning of electron charge and spin distribution in a dot-ring nanostructure at the ZnO interface