Superparamagnetism in small Fe clusters on Cu(111)

被引：6

作者：

Ballentine, G. ^{[1
]}

Hessler, M. ^{[1
]}

Kinza, M. ^{[1
]}

Fauth, K. ^{[1
]}

机构：

[1] Max Planck Inst Metallforschung, Heisenbergstr 3, D-70569 Stuttgart, Germany

来源：

EUROPEAN PHYSICAL JOURNAL D | 2007年 / 45卷 / 03期

关键词：

D O I：

10.1140/epjd/e2007-00271-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Fe clusters of 105 +/- 2 atoms/cluster were mass selectively deposited onto Cu(111) at cryogenic temperatures. XMCD was used to measure temperature and direction dependent magnetization curves. The clusters are superparamagnetic at the lowest temperature measured (10 K). Their magnetization curves are consistent with magnetic moments of approximate to 2.5 mu(B) per atom which are thus enhanced over the bulk values. Within experimental accuracy, the clusters do not present magnetocrystalline anisotropy in the temperature range of 10 K to 60 K.

引用

页码：535 / 537

页数：3

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