Multi-orbital physics of edge-magnetism in a Hubbard model of transition-metal dichalcogenide nanoribbons: Comparing Mean Field Theory and Determinant Quantum Monte Carlo

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020

Autores

Brito, F (Autor) Outra; Eduardo V Castro (Autor) FCUP; Lopes, JV (Autor) FCUP

Revista

Título: EPJ Web of Conferences

ISSN: 2101-6275

Editora: EDP Sciences

Outras Informações

ID Authenticus: P-00S-0NY

DOI: 10.1051/epjconf/202023303003

Abstract (EN): <jats:p>We study the emergence of edge-magnetism in zigzag nanoribbons from electron-electron interactions in a minimal 3-band tight-binding descrip¬tion of transition-metal dichalcogenide monolayers with an intra-orbital Hub¬bard term. We explain the influence of each orbital in the magnetic ordering, comparing the results of Mean Field Theory and determinant Quantum Monte Carlo. We focus on a gapped edge-antiferromagnetic phase appearing at three-quarter edge-filling for realistic values of the interaction.</jats:p>

Idioma: Inglês

Tipo (Avaliação Docente): Científica