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http://hdl.handle.net/1843/58330| Tipo: | Artigo de Periódico |
| Título: | Significant Dzyaloshinskii-Moriya interaction at graphene-ferromagnet interfaces due to the Rashba effect |
| Autor(es): | Hongxin Yang Albert Fert Mairbek Chshiev Gong Chen Alexandre Alberto Chaves Cotta Alpha T. N'Diaye Sergey A. Nikolaev Edmar Avellar Soares Waldemar Augusto de Almeida Macedo Kai Liu Andreas K. Schmid |
| Resumen: | The possibility of utilizing the rich spin-dependent properties of graphene has attracted much attention in the pursuit of spintronics advances. The promise of high-speed and low-energy-consumption devices motivates the search for layered structures that stabilize chiral spin textures such as topologically protected skyrmions. Here we demonstrate that chiral spin textures are induced at graphene/ferromagnetic metal interfaces. Graphene is a weak spin–orbit coupling material and is generally not expected to induce a sufficient Dzyaloshinskii–Moriya interaction to affect magnetic chirality. We demonstrate that indeed graphene does induce a type of Dzyaloshinskii–Moriya interaction due to the Rashba effect. First-principles calculations and experiments using spin-polarized electron microscopy show that this graphene-induced Dzyaloshinskii–Moriya interaction can have a similar magnitude to that at interfaces with heavy metals. This work paves a path towards two-dimensional-material-based spin–orbitronics. |
| Asunto: | Magnetismo Ferromagnetismo Grafeno |
| Idioma: | eng |
| País: | Brasil |
| Editor: | Universidade Federal de Minas Gerais |
| Sigla da Institución: | UFMG |
| Departamento: | ICX - DEPARTAMENTO DE FÍSICA |
| Tipo de acceso: | Acesso Restrito |
| Identificador DOI: | https://doi.org/10.1038/s41563-018-0079-4 |
| URI: | http://hdl.handle.net/1843/58330 |
| Fecha del documento: | 2018 |
| metadata.dc.url.externa: | https://www.nature.com/articles/s41563-018-0079-4 |
| metadata.dc.relation.ispartof: | nature materials |
| Aparece en las colecciones: | Artigo de Periódico |
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