Magnetic anisotropy and engineering of magnetic behavior of the edges in Co embedded graphene nanoribbons.
Magnetic anisotropy and engineering of magnetic behavior of the edges in Co embedded graphene nanoribbons.
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DOI：
10.1103/physrevlett.108.187208
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发表时间：
2012-05
影响因子：
8.6
通讯作者：
S. Lisenkov;A. Andriotis;M. Menon
中科院分区：
文献类型：
--
作者：
S. Lisenkov;A. Andriotis;M. Menon
利用第一性原理计算，我们证明了嵌入钴的石墨烯纳米带（GNR）中存在各向异性铁磁相互作用。发现与无金属情况相比，边缘态的自旋极化发生显着变化。我们的发现可以充分证明 Co 原子附近诱导自旋极化的发展与无 Co GNR 极化图像的维持之间相互作用的结果。根据我们的结果，我们提出了一种基于石墨烯的自旋电子学应用的有效途径。
Using first-principles calculations, we demonstrate the existence of anisotropic ferromagnetic interactions in Co embedded graphene nanoribbons (GNRs). Spin polarization of the edge states is found to alter significantly compared to the metal-free cases. Our findings can all be well-justified as the output of the interplay between the development of an induced spin polarization in the neighborhood of the Co atoms and the maintaining of the polarization picture of the Co-free GNR. Based on our results, we propose an efficient pathway for graphene-based spintronics applications.