Strain induced edge magnetism at zigzag edge of a graphene quantum dot
Data(s) |
08/01/2015
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Resumo |
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. |
Identificador |
2469-9950 2469-9969 http://hdl.handle.net/1822/39313 10.1103/PhysRevB.91.075410 |
Idioma(s) |
eng |
Publicador |
APS |
Direitos |
info:eu-repo/semantics/openAccess |
Palavras-Chave | #Graphene #2D Materials |
Tipo |
info:eu-repo/semantics/article |