Journal
NANO LETTERS
Volume 8, Issue 8, Pages 2556-2558Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl801858a
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Funding
- Flemish-Hungarian Bilateral Programme
- Flemish Science Foundation (FWO-V1)
- Belgian Science Policy
- Hungarian Scientific Research Fund (OTKA) [T48888, M36803, M045596]
- Hungarian Academy of Sciences
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An array of quantum rings with local (ring by ring) modulation of the spin orbit interaction (SOI) can lead to novel effects in spin state transformation of electrons. It is shown that already small (3 x 3, 5 x 5) networks are remarkably versatile from this point of view: Working in a given network geometry, the input current can be directed to any of the output ports, simply by changing the SOI strengths by external gate voltages. Additionally, the same network with different SOI strengths can be completely analogous to the Stern-Gerlach device, exhibiting spatial-spin entanglement.
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