Electronic Structures and Magnetic Anisotropy Energies of Graphene with Adsorbed Transition-Metal Adatoms

被引：2

作者：

Huy Duy Nguyen ^{[1
]}

Ono, Tomoya ^{[1
,2
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

[2] JST PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2014年 / 83卷 / 09期

基金：

日本学术振兴会;

关键词：

AU(001);

D O I：

10.7566/JPSJ.83.094716

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the electronic structures of graphene with an adsorbed Fe, Co, or Ni adatom in the presence of spin-orbit coupling by density functional theory calculations. As a result of spin-orbit coupling, energy gaps are opened at the crossing points of spin-up and spin-down bands near the Dirac point in the cases of Fe and Co adatoms. In the case of the Ni adatom, the Rashba effect is observed with a k-dependent energy shift of the 3 bands at the bottom of the Fermi surface. The calculated magnetic anisotropy energies reveal that the Fe adatom exhibits an in-plane easy magnetization axis, while the Co adatom exhibits an out-of-plane easy axis.

引用

页数：4

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