| Texto completo | |
| Autor(es): |
Canonico, Luis M.
;
Cysne, Tarik P.
;
Molina-Sanchez, Alejandro
;
Muniz, R. B.
;
Rappoport, Tatiana G.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW B; v. 101, n. 16, p. 6-pg., 2020-04-29. |
| Resumo | |
We show that H-phase transition metal dichalcogenide (TMD) monolayers, such as MoS2 and WSe2, are orbital Hall insulators. They present very large orbital Hall conductivity plateaus in their semiconducting gap, where the spin Hall conductivity vanishes. Our results open the possibility of using TMDs for orbital current injection and orbital torque transfers that surpass their spin-counterparts in spin-orbitronics devices. The orbital Hall effect in TMD monolayers occurs even in the absence of spin-orbit coupling. It can be linked to exotic momentum-space Dresselhaus-like orbital textures, analogous to the spin-momentum locking in two-dimensional Dirac fermions that arise from a combination of orbital attributes and lattice symmetry. (AU) | |
| Processo FAPESP: | 19/17345-7 - Localização de muitos corpos de fótons no regime de interação fraca |
| Beneficiário: | Tarik Pereira Cysne |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |