Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39313
Título: | Strain induced edge magnetism at zigzag edge of a graphene quantum dot |
Autor(es): | Shuai Cheng Jinming Yu Tianxing Ma Peres, N. M. R. |
Palavras-chave: | Graphene 2D Materials |
Data: | 8-Jan-2015 |
Editora: | American Physical Society |
Revista: | Physical Review B: Condensed Matter and Materials Physics |
Resumo(s): | We study the temperature dependent magnetic susceptibility of a strained graphene quantum dot by using the determinant quantum Monte Carlo method. Within the Hubbard model on a honeycomb lattice, our unbiased numerical results show that a relative small interaction $U$ may lead to a edge ferromagnetic like behavior in the strained graphene quantum dot, and a possible room temperature transition is suggested. Around half filling, the ferromagnetic fluctuations at the zigzag edge is strengthened both markedly by the on-site Coulomb interaction and the strain, especially in low temperature region. The resultant strongly enhanced ferromagnetic like behavior may be important for the development of many applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/39313 |
DOI: | 10.1103/PhysRevB.91.075410 |
ISSN: | 1098-0121 |
e-ISSN: | 1550-235X |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - CEP - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Ma-1409.2341.pdf | 286,04 kB | Adobe PDF | Ver/Abrir |