%0 Journal Article %1 WOS:000358253200009 %A da Costa, D R %A Chaves, Andrey %A Sena, S H R %A Farias, G A %A Peeters, F M %C ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA %D 2015 %I AMER PHYSICAL SOC %J PHYSICAL REVIEW B %K imported %N 4 %R 10.1103/PhysRevB.92.045417 %T Valley filtering using electrostatic potentials in bilayer graphene %V 92 %X Propagation of an electron wave packet through a quantum point contact (QPC) defined by electrostatic gates in bilayer graphene is investigated. The gates provide a bias between the layers, in order to produce an energy gap. If the gates on both sides of the contact produce the same bias, steps in the electron transmission probability are observed, as in the usual QPC. However, if the bias is inverted on one of the sides of the QPC, only electrons belonging to one of the Dirac valleys are allowed to pass, which provides a very efficient valley filtering.

@article{WOS:000358253200009, abstract = {Propagation of an electron wave packet through a quantum point contact (QPC) defined by electrostatic gates in bilayer graphene is investigated. The gates provide a bias between the layers, in order to produce an energy gap. If the gates on both sides of the contact produce the same bias, steps in the electron transmission probability are observed, as in the usual QPC. However, if the bias is inverted on one of the sides of the QPC, only electrons belonging to one of the Dirac valleys are allowed to pass, which provides a very efficient valley filtering.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}, author = {da Costa, D R and Chaves, Andrey and Sena, S H R and Farias, G A and Peeters, F M}, biburl = {https://www.bibsonomy.org/bibtex/22678b400820e06b7d27439ead341229b/ppgfis_ufc_br}, doi = {10.1103/PhysRevB.92.045417}, interhash = {756770e76dd43e2065206eff99308fc6}, intrahash = {2678b400820e06b7d27439ead341229b}, issn = {2469-9950}, journal = {PHYSICAL REVIEW B}, keywords = {imported}, number = 4, publisher = {AMER PHYSICAL SOC}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Valley filtering using electrostatic potentials in bilayer graphene}, tppubtype = {article}, volume = 92, year = 2015 }