Electrical Control of Spin Relaxation Time in Complex Quantum Nanostructures

• Authors: M. Kurpas , B. Kędzierska , I. Janus-Zygmunt , M. Maśka , E. Zipper
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

72.25.Rb; 73.22.-f; 75.70.Tj; 85.35.Be

Discipline

• 73.22.-f: Electronic structure of nanoscale materials and related systems
• 85.35.Be: Quantum well devices (quantum dots, quantum wires, etc.)
• 72.25.Rb: Spin relaxation and scattering
• 75.70.Tj: Spin-orbit effects(see also 71.70.Ej Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 4a
• Pages: A-20-A-25

Dates

published

2014-10

Contributors

author

M. Kurpas

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

B. Kędzierska

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

I. Janus-Zygmunt

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

M. Maśka

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

E. Zipper

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

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Identifiers

DOI

10.12693/APhysPolA.126.A-20