| Texto completo | |
| Autor(es): |
Braz, Lauro B.
;
Nag, Tanay
;
Black-Schaffer, Annica M.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW B; v. 110, n. 24, p. 8-pg., 2024-12-03. |
| Resumo | |
We study interaction-mediated magnetism on the surface of ABC-multilayer graphene driven by its zero- energy topological flat bands. Using the random-phase approximation, we treat onsite Hubbard repulsion and find multiple competing magnetic states, due to both intraand intervalley scattering, with the latter causing an enlarged magnetic unit cell. At half-filling and when the Hubbard repulsion is weak, we observe two different ferromagnetic orders. Once the Hubbard repulsion becomes more realistic, new ferrimagnetic orders arise with distinct incommensurate intraor intervalley scattering vectors depending on interaction strength and doping, leading to a multitude of competing magnetic states. (AU) | |
| Processo FAPESP: | 23/14902-8 - Supercondutividade e interações em sistemas eletrônicos multi-orbitais e multi-vale |
| Beneficiário: | Lauro Barreto Braz |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |