Abstract
We find clear signatures of spin-dependent negative differential resistance in compound systems comprising a graphene nanoribbon and a set of ferromagnetic insulator strips deposited on top of it. The periodic array of ferromagnetic strips induces a proximity exchange splitting of the electronic states in graphene, resulting in the appearance of a super lattice with a spin-dependent energy spectrum. The electric current through the device can be highly polarized and both the current and its polarization manifest non-monotonic dependence on the bias voltage. The device operates therefore as an Esaki spin diode, which opens possibilities to design new spintronic circuits.
Keywords
- Negative Differential Resistance (NDR)
- Ferromagnetic Stripes
- Super Lattice
- Resonant Interband Tunneling Diodes
- Spin-polarized Current
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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© 2014 Springer International Publishing Switzerland
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Munárriz Arrieta, J. (2014). Spin-Dependent Negative Differential Resistance in Graphene Superlattices. In: Modelling of Plasmonic and Graphene Nanodevices. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-07088-9_5
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DOI: https://doi.org/10.1007/978-3-319-07088-9_5
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