RT Journal Article
T1 Spin-polarized electric current in silicene nanoribbons induced by atomic adsorption
A1 Núñez, C.
A1 Orellana, P. A.
A1 Rosales, L.
A1 Römer, R. A.
A1 Domínguez-Adame Acosta, Francisco
AB We investigate the nonequilibrium transport properties of a silicene armchair nanoribbon with a random distribution of adsorbed atoms in apex positions. A ferromagnetic insulator grown below the nanoribbon splits spin-up and spin-down electron bands and gives rise to a spin polarization of the conductance. The conductance vanishes when the Fermi energy matches the adatom levels due to the coupling of adatom localized states with the continuum spectra of the nanoribbon. This is the well-known Fano effect, resulting in a spin-dependent antiresonance in the conductance. The different antiresonance energies of spin-up and spin-down electrons give rise to a full spin polarization of the conductance in a broad energy window. This spin-dependent Fano effect opens the possibility to using it in spintronics as a tuneable source of polarized electrons.
PB American Physical Society
SN 2469-9950
YR 2017
FD 2017-07-06
LK https://hdl.handle.net/20.500.14352/18061
UL https://hdl.handle.net/20.500.14352/18061
LA eng
NO ©2017 American Physical Society.C.N. and F.D.-A. thank the Theoretical Physics Group of the University of Warwick for the warm hospitality. Work at Madrid has been supported by MINECO under Grants No. MAT2013-46308 and No. MAT2016-75955. L.R. and P.A.O. acknowledge FONDECYT Grants No. 1140388 and No. 1140571, respectively. C.N. is grateful for the funding of scholarship CONICYT-Chile and DGIP-UTFSM. UK research data statement: All data accompanying this publication are directly available within the publication.
NO Ministerio de Economía y Competitividad (MINECO)
NO FONDECYT
NO CONICYT (Chile)
NO DGIP-UTFSM (UK)
DS Docta Complutense
RD 18 abr 2025