%0 Journal Article %1 WOS:000319281700004 %A Duppen, B Van %A Sena, S H R %A Peeters, F M %C ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA %D 2013 %I AMER PHYSICAL SOC %J PHYSICAL REVIEW B %K imported %N 19 %R 10.1103/PhysRevB.87.195439 %T Multiband tunneling in trilayer graphene %V 87 %X The electronic tunneling properties of the two stable forms of trilayer graphene (TLG), rhombohedral ABC and Bernal ABA, are examined for p-n and p-n-p junctions as realized by using a single gate (SG) or a double gate (DG). For the rhombohedral form, due to the chirality of the electrons, the Klein paradox is found at normal incidence for SG devices, while at high-energy interband scattering between additional propagation modes can occur. The electrons in Bernal ABA TLG can have a monolayer- or bilayer-like character when incident on a SG device. Using a DG, however, both propagation modes will couple by breaking the mirror symmetry of the system, which induces intermode scattering and resonances that depend on the width of the DG p-n-p junction. For ABC TLG the DG opens up a band gap which suppresses Klein tunneling. The DG induces also an unexpected asymmetry in the tunneling angle for single-valley electrons.

@article{WOS:000319281700004, abstract = {The electronic tunneling properties of the two stable forms of trilayer graphene (TLG), rhombohedral ABC and Bernal ABA, are examined for p-n and p-n-p junctions as realized by using a single gate (SG) or a double gate (DG). For the rhombohedral form, due to the chirality of the electrons, the Klein paradox is found at normal incidence for SG devices, while at high-energy interband scattering between additional propagation modes can occur. The electrons in Bernal ABA TLG can have a monolayer- or bilayer-like character when incident on a SG device. Using a DG, however, both propagation modes will couple by breaking the mirror symmetry of the system, which induces intermode scattering and resonances that depend on the width of the DG p-n-p junction. For ABC TLG the DG opens up a band gap which suppresses Klein tunneling. The DG induces also an unexpected asymmetry in the tunneling angle for single-valley electrons.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}, author = {Duppen, B Van and Sena, S H R and Peeters, F M}, biburl = {https://www.bibsonomy.org/bibtex/2d5cd4cd3e01a958f77da15a88c3e6dd1/ppgfis_ufc_br}, doi = {10.1103/PhysRevB.87.195439}, interhash = {1919ac8ba5db9c8cbed297e59089359d}, intrahash = {d5cd4cd3e01a958f77da15a88c3e6dd1}, issn = {1098-0121}, journal = {PHYSICAL REVIEW B}, keywords = {imported}, number = 19, publisher = {AMER PHYSICAL SOC}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Multiband tunneling in trilayer graphene}, tppubtype = {article}, volume = 87, year = 2013 }