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Significant Dzyaloshinskii-Moriya interaction at graphene-ferromagnet interfaces due to the Rashba effect
Yang, Hongxin; Chen, Gong; Cotta, Alexandre A. C.; N'Diaye, Alpha T.; Nikolaev, Sergey A.; Soares, Edmar A.; Macedo, Waldemar A. A.; Liu, Kai; Schmid, Andreas K.; Fert, Albert; Chshiev, Mairbek
2018
发表期刊NATURE MATERIALS
卷号17期号:7页码:605
摘要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.
关键词Magnetic Skyrmions Weak Ferromagnetism Epitaxial Graphene Domain-walls Dynamics Motion
学科领域Engineering ; Water Resources
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17354
专题2018专题
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GB/T 7714
Yang, Hongxin,Chen, Gong,Cotta, Alexandre A. C.,et al. Significant Dzyaloshinskii-Moriya interaction at graphene-ferromagnet interfaces due to the Rashba effect[J]. NATURE MATERIALS,2018,17(7):605.
APA Yang, Hongxin.,Chen, Gong.,Cotta, Alexandre A. C..,N'Diaye, Alpha T..,Nikolaev, Sergey A..,...&Chshiev, Mairbek.(2018).Significant Dzyaloshinskii-Moriya interaction at graphene-ferromagnet interfaces due to the Rashba effect.NATURE MATERIALS,17(7),605.
MLA Yang, Hongxin,et al."Significant Dzyaloshinskii-Moriya interaction at graphene-ferromagnet interfaces due to the Rashba effect".NATURE MATERIALS 17.7(2018):605.
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