Ferromagnetic ordering and magnetic anisotropy of a Mn monolayer on Nb(001)

被引：8
|
作者：
Hong, JS [1 ]
Wu, RQ
机构：
[1] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea
[2] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
来源：
PHYSICAL REVIEW B | 2006年 / 73卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.73.094450
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Through density functional full-potential linearized augmented-plane-wave calculations, we found that it is possible to materialize a ferromagnetic Mn monolayer on nonmagnetic Nb(001). It was obtained that the surface Nb atom has a large induced magnetic moment of -0.56 mu(B) and the Nb has an antiferromagnetic exchange interaction with the Mn adlayer. We attribute this antiferromagnetic exchange interaction between Mn and Nb atoms to the realization of a ferromagnetic ground state in a Mn monolayer on the Nb(001) surface. We also present the calculated results of x-ray magnetic circular dichroism and magnetic anisotropy. It was observed that Mn/Nb(001) has weak perpendicular magnetocrystalline anisotropy, but the easy axis is in plane due to the shape anisotropy.
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页数：4
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