Structure and magnetic moments of mass-filtered deposited nanoparticles

被引：51
作者：
Kleibert, A. [1 ]
Passig, J.
Meiwes-Broer, K.-H.
Getzlaff, M.
Bansmann, J.
机构：
[1] Univ Rostock, Inst Phys, D-18051 Rostock, Germany
[2] Univ Dusseldorf, Inst Angew Phys, D-40225 Dusseldorf, Germany
[3] Univ Ulm, Inst Oberflachenchem & Katalyse, D-89069 Ulm, Germany
来源：
JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 11期
关键词：
D O I：
10.1063/1.2745330
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Mass-filtered 3d transition metal nanoparticles have been produced by means of an ultrahigh vacuum compatible arc cluster ion source. High resolution transmission electron microscopy images of individual Fe, Co, and FeCo alloy particles with diameters of about 12 nm reveal the crystalline structure of the nanoparticles. X-ray absorption spectroscopy confirms the purity of the particles after in situ deposition. Analysis of the x-ray magnetic circular dichroism reveals bulklike total magnetic moments in all cases and strongly enhanced orbital moments for the iron nanoparticles. Furthermore, the data hint at a chemically ordered alloy in the case of FeCo particles. (c) 2007 American Institute of Physics.
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页数：4
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