Nano Archive

Networks of quantum nanorings: Programmable spintronic devices

Foldi, Peter and Kalman, Orsolya and Benedict, Mihaly G. and Peeters, F. M. (2008) Networks of quantum nanorings: Programmable spintronic devices. NANO LETTERS, 8 (8). pp. 2556-2558.

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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 × 3, 5 × 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.

Item Type:Article
Subjects:Physical Science > Nano objects
Physical Science > Nanoelectronics
ID Code:6390
Deposited By:IoN
Deposited On:06 Aug 2009 15:51
Last Modified:06 Aug 2009 15:51

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