Cluster surface interactions:: small Fe clusters driven nonmagnetic on graphite

被引：11

作者：

Fauth, K

Gold, S

Hessler, M

Schneider, N

Schütz, G

机构：

[1] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany

[2] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 392卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2004.06.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a study of the changes in the magnetic and electronic properties of small, deposited Fe clusters upon exposure to the graphite surface. The clusters exhibit strong X-ray magnetic circular dichroism (XMCD) at the L(3) edge while matrix isolated in a thin Ar film. XMCD and photoemission experiments show that the clusters are driven into a nonmagnetic state by the interaction to graphite. Our results support earlier calculations for adatoms and dimers and extend their validity to larger cluster sizes. They also provide a basis for an understanding of the magnetic properties of carbon encapsulated transition metal particles. (C) 2004 Elsevier B.V. All rights reserved.

引用

收藏

页码：498 / 502

页数：5

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