Direct observation of local ferromagnetism on carbon in C/Fe multilayers

被引：47

作者：

Mertins, HC

Valencia, S

Gudat, W

Oppeneer, PM

Zaharko, O

Grimmer, H

机构：

[1] Univ Appl Sci Munster, D-48565 Steinfurt, Germany

[2] BESSY, D-12489 Berlin, Germany

[3] Leibniz Inst Solid State & Mat Res, D-01171 Dresden, Germany

[4] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

来源：

EUROPHYSICS LETTERS | 2004年 / 66卷 / 05期

关键词：

D O I：

10.1209/epl/i2003-10253-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An element-selective investigation of magnetism on carbon in the vicinity of Fe atoms in a C/Fe multilayer is reported. We utilize resonant magnetic reflectivity of circularly polarized synchrotron radiation which allows us to distinguish unambiguously the local magnetism on carbon from that on Fe through individual core-level excitations. Clear magnetic signals of carbon are obtained by exploiting the standing-wave technique. Hysteresis loops of individually excited C and Fe atoms demonstrate ferromagnetism of C at room temperature with a moment of approximate to 0.05mu(B) induced by adjacent Fe atoms.

引用

页码：743 / 748

页数：6

共 22 条

[1] ELECTRONIC-STRUCTURE OF GRAPHITE - EFFECT OF HYDROSTATIC-PRESSURE [J].