Abstract
Quantum interference effects in rings provide suitable means to control spins at the mesoscopic scale. In this chapter we present the theory underlying spin-induced modulations of unpolarized currents in quantum rings subject to the Rashba spin-orbit interaction. We discuss explicitly the connection between the conductance modulations and the geometric phase acquired by the spin during transport, as well as pathways to directly control them.
| Original language | English |
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| Title of host publication | Physics of Quantum Rings |
| Editors | Vladimir M. Fomin |
| Publisher | Springer |
| Chapter | 12 |
| Pages | 327-346 |
| Number of pages | 20 |
| ISBN (Electronic) | 978-3-319-95159-1 |
| ISBN (Print) | 978-3-319-95158-4 |
| DOIs | |
| Publication status | Published - 1 Jan 2018 |
Publication series
| Name | NanoScience and Technology |
|---|---|
| ISSN (Print) | 1434-4904 |
Funding
Fig. 12.8 Contour map of the cosine of the geometric phase (top panel), the dynamical phase (middle panel), and the total phase (bottom panel) as a function of the spin-orbit coupling and Zeeman splitting in a ballistic single-mode quantum ring tangentially coupled to leads From [38] (Copyright 2015 American Physical Society) Acknowledgements I acknowledge the financial support from the Future and Emerging Technologies (FET) programme within the Seventh Framework Programme for Research of the European Commission under FET-Open grant number: 618083 (CNTQC), and from a VIDI grant (Project 680-47-543) financed by the Netherlands Organization for Scientific Research (NWO).