Soft X-ray magnetic circular dichroism study on Gd-doped EuO thin films

被引：74

作者：

Ott, H

Heise, SJ

Sutarto, R

Hu, Z

Chang, CF

Hsieh, HH

Lin, HJ

Chen, CT

Tjeng, LH

机构：

[1] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[2] Natl Def Univ, Chung Cheng Inst Technol, Taoyuan 335, Taiwan

[3] Natl Synchrotron Radiat Res Ctr, Hsinchu 30077, Taiwan

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.73.094407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the growth and magnetic properties of Gd-doped EuO thin films. We prepared samples with Gd concentrations up to 11% by means of molecular beam epitaxy under distillation conditions. Using soft x-ray magnetic circular dichroism at the Eu and Gd M-4,M-5 edges, we found that T-C ranges from 69 K for pure stoichiometric EuO to about 170 K for films with the optimal Gd doping of around 4%. The doping dependence of T-C has been investigated and compared with available theoretical predictions. We also show that the Gd magnetic moment couples ferromagnetically to that of Eu.

引用

页数：4

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