%0 Journal Article %1 WOS:000673758900001 %A V, F R Araujo %A da Costa, D R %A Lima, F N %A Nascimento, A C S %A Jr., J M Pereira %C TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND %D 2021 %I IOP PUBLISHING LTD %J JOURNAL OF PHYSICS-CONDENSED MATTER %K Y-junction; current graphene; junction} p-n properties; switch; transport transport; {ballistic %N 37 %R 10.1088/1361-648X/ac0f2b %T Gate potential-controlled current switching in graphene Y-junctions %V 33 %X In this work we investigate the ballistic transport of electrons through three-terminal graphene-based devices. The system consists of a Y-shaped junction formed by three armchair-edged graphene nanoribbons with a rectangular gate potential applied to one of the output branches, whereby current control can be established by the controlling of the refractive index in graphene p-n junctions. Transport properties are obtained by using the Landauer-Buttiker formalism and the tight-binding model within the nearest-neighbor approximation, which allows the calculation of the conductance as function of the Fermi energy, the applied potential, and the system size, as well as the current density. The results demonstrate that the applied electric field can tune the current transmission between the input and two output leads and, consequently, the proposed system acts as a current switch.

@article{WOS:000673758900001, abstract = {In this work we investigate the ballistic transport of electrons through three-terminal graphene-based devices. The system consists of a Y-shaped junction formed by three armchair-edged graphene nanoribbons with a rectangular gate potential applied to one of the output branches, whereby current control can be established by the controlling of the refractive index in graphene p-n junctions. Transport properties are obtained by using the Landauer-Buttiker formalism and the tight-binding model within the nearest-neighbor approximation, which allows the calculation of the conductance as function of the Fermi energy, the applied potential, and the system size, as well as the current density. The results demonstrate that the applied electric field can tune the current transmission between the input and two output leads and, consequently, the proposed system acts as a current switch.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND}, author = {V, F R Araujo and da Costa, D R and Lima, F N and Nascimento, A C S and Jr., J M Pereira}, biburl = {https://www.bibsonomy.org/bibtex/2eafa13bef31a21beda1c258ead7686e4/ppgfis_ufc_br}, doi = {10.1088/1361-648X/ac0f2b}, interhash = {362646b2af7169df4aad96b5276c3ece}, intrahash = {eafa13bef31a21beda1c258ead7686e4}, issn = {0953-8984}, journal = {JOURNAL OF PHYSICS-CONDENSED MATTER}, keywords = {Y-junction; current graphene; junction} p-n properties; switch; transport transport; {ballistic}, number = 37, publisher = {IOP PUBLISHING LTD}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Gate potential-controlled current switching in graphene Y-junctions}, tppubtype = {article}, volume = 33, year = 2021 }