Manipulation of magnetic anisotropy of Fe/graphene by charge injection
Manipulation of magnetic anisotropy of Fe/graphene by charge injection
复制标题
DOI：
10.1063/1.3697627
复制
发表时间：
2012-03
影响因子：
4
通讯作者：
S. Gong;C. Duan;Ziqiang Zhu;J. Chu
中科院分区：
文献类型：
--
作者：
S. Gong;C. Duan;Ziqiang Zhu;J. Chu
We propose that charge injection can be used to tune the magnetic anisotropy of transition metal monolayer adsorbed on graphene substrate. Using relativistic density-functional calculations, we calculate magnetocrystalline anisotropy energy (MAE) of freestanding Fe monolayer and Fe/graphene complex system. We find MAE of Fe atom is drastically changed, from meV/atom in freestanding Fe monolayer to μeV/atom in Fe/graphene system. The more interesting finding is, through charge injection, the suppressed MAE of Fe atoms in Fe/graphene system can be restored back, which provides an effective approach to control MAE. We expect such strategy would be beneficial to graphene based spintronic devices.
