Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/61494
Título: | Hybrid plasmon-magnon polaritons in graphene-antiferromagnet heterostructures |
Autor(es): | Bludov, Yuliy V. Gomes, J. N. Farias, G. A. Fernández-Rossier, J. Vasilevskiy, Mikhail Peres, N. M. R. |
Palavras-chave: | Plasmons Graphene Spin waves Antiferromagnet polariton magnon graphene surface plasmon hybrid system |
Data: | 2-Jul-2019 |
Editora: | IOP Publishing |
Revista: | 2D Materials |
Citação: | Bludov, Y., Gomes, J. N., de Aquino Farias, G., Fernández-Rossier, J., Vasilevskiy, M. I., & Peres, N. (2019). Hybrid plasmon-magnon polaritons in graphene-antiferromagnet heterostructures. 2D Materials. |
Resumo(s): | We consider a hybrid structure formed by graphene and an insulating antiferromagnet, separated by a dielectric of thickness up to $d\simeq 500 \,nm$. When uncoupled, both graphene and the antiferromagnetic surface host their own polariton modes coupling the electromagnetic field with plasmons in the case of graphene, and with magnons in the case of the antiferromagnet. We show that the hybrid structure can host two new types of hybrid polariton modes. First, a surface magnon-plasmon polariton whose dispersion is radically changed by the carrier density of the graphene layer, including a change of sign in the group velocity. Second, a surface plasmon-magnon polariton formed as a linear superposition of graphene surface plasmon and the antiferromagnetic bare magnon. This polariton has a dispersion with two branches, formed by the anticrossing between the dispersive surface plasmon and the magnon. We discuss the potential these new modes have for combining photons, magnons, and plasmons to reach new functionalities. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/61494 |
DOI: | 10.1088/2053-1583/ab2513 |
ISSN: | 2053-1583 |
e-ISSN: | 2053-1583 |
Versão da editora: | https://iopscience.iop.org/article/10.1088/2053-1583/ab2513/meta |
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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1902.00708.pdf | 949,69 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons