Electron-correlation-induced magnetic order of ultrathin Mn films

被引：82

作者：

Durr, HA ^{[1
]}

vanderLaan, G ^{[1
]}

Spanke, D ^{[1
]}

Hillebrecht, FU ^{[1
]}

Brookes, NB ^{[1
]}

机构：

[1] UNIV DUSSELDORF,INST ANGEW PHYS,D-40225 DUSSELDORF,GERMANY

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.56.8156

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied the electronic and magnetic properties of ultrathin Mn films deposited onto Cu, Ni, and Fe surfaces with x-ray-absorption and resonant-photoemission spectroscopies. The observed strong changes in the Mn 2p branching ratio as a function of coverage and substrate type indicate a change from localized to itinerant behavior. The 2p3p3p resonant photoemission triplet state shows two features which can be assigned to a well-screened and a poorly screened final state. The intensity ratio between these two states allows corroboration of the electron localization. Magnetic circular x-ray dichroism gives the spin magnetic moment of the Mn ground state and information about the Mn-substrate magnetic coupling. Combining these results we propose a simple explanation for the magnetic behavior of the Mn layers.

引用

页码：8156 / 8162

页数：7