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Lima, R.P.A. and Domínguez-Adame Acosta, Francisco (2014) Gated-controlled electron pumping in connected quantum rings. Physics letters A, 378 (34). pp. 2545-2548. ISSN 0375-9601
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Official URL: http://dx.doi.org/10.1016/j.physleta.2014.06.037
Abstract
We study the electronic transport across connected quantum rings attached to leads and subjected to time-harmonic side-gate voltages. Using the Floquet formalism, we calculate the net pumped current generated and controlled by the side-gate voltage. The control of the current is achieved by varying the phase shift between the two side-gate voltages as well as the Fermi energy. In particular, the maximum current is reached when the side-gate voltages are in quadrature. This new design based on connected quantum rings controlled without magnetic fields can be easily integrated in standard electronic devices.
Item Type: | Article |
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Additional Information: | © Physics Letters A. |
Uncontrolled Keywords: | Potentials; Flux |
Subjects: | Sciences > Physics > Materials |
ID Code: | 30543 |
Deposited On: | 03 Jun 2015 08:50 |
Last Modified: | 03 Jun 2015 08:50 |
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