RT Journal Article
T1 Strong spin-dependent negative differential resistance in composite graphene superlattices
A1 Munarriz, J.
A1 Gaul, Christopher
A1 Malyshev, Andrey
A1 Orellana, P. A.
A1 Mueller, C. A.
A1 Domínguez-Adame Acosta, Francisco
AB 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 nonmonotonic dependence on the bias voltage. The device operates therefore as an Esaki spin diode, which opens possibilities to design new spintronic circuits.
PB American Physical Society
SN 0163-1829
YR 2013
FD 2013-10
LK https://hdl.handle.net/20.500.14352/33682
UL https://hdl.handle.net/20.500.14352/33682
LA eng
NO © 2013 American Physical Society.Work in Madrid was supported by the MICINN (Project No. MAT2010-17180). Research of C.G. was supported by the PICATA postdoctoral fellowship from the Moncloa Campus of International Excellence (UCM-UPM). P.A.O. acknowledges financial support from the FONDECYT (Grant No. 1100560).
NO MICINN
NO Moncloa Campus of International Excellence (UCM-UPM)
NO FONDECYT
DS Docta Complutense
RD 22 abr 2025