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Strong Spin-dependent Negative Differential Resistance in Composite Graphene Superlattices by Munárriz, J.; Gaul, C.; Malyshev, A. V.; Orellana, P. A.; Müller, C. A.; Domínguez-Adame, F. is a scholarly article available to read on EtoBox.

What is Strong Spin-dependent Negative Differential Resistance in Composite Graphene Superlattices about?

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 superlattice 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.

Author

Munárriz, J.; Gaul, C.; Malyshev, A. V.; Orellana, P. A.; Müller, C. A.; Domínguez-Adame, F.

Published

2012

Language

EN