Topological Anderson insulating phases in the interacting Haldane model

• Tipo: Artigo em Revista Científica Internacional
• Data: 2024

Autores

Silva, JS (Autor) Outra; Eduardo V Castro (Autor) FCUP; Mondaini, R (Autor) Outra; Vozmediano, MAH (Autor) Outra; López Sancho, MP (Autor) Outra

Revista

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Título: PHYSICAL REVIEW B

Vol. 109

ISSN: 2469-9950

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-010-956

DOI: 10.1103/physrevb.109.125145

Abstract (EN): We analyze the influence of disorder and strong correlations on the topology of two-dimensional Chern insulators. A mean-field calculation in the half-filled Haldane model with extended Hubbard interactions and Anderson disorder shows that the disorder favors topology in the interacting case and extends the topological phase to a larger region of the Hubbard parameters. In the absence of a staggered potential, we find a novel disorder-driven topological phase with Chern number C = 1, with the coexistence of topology with long-range spin and charge orders. More conventional topological Anderson insulating phases are also found in the presence of a finite staggered potential.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8