Structure and dynamics of magnetic nanoparticles

被引：2

作者：

Clausen, KN

Bodker, F

Hansen, MF

Kuhn, LT

Lefmann, K

Lindgård, PA

Morup, S

Telling, M

机构：

[1] Riso Natl Lab, Condensed Matter Phys & Chem Dept, DK-4000 Roskilde, Denmark

[2] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark

[3] Katholieke Univ Leuven, Lab Solid State Phys & Magn, B-3001 Louvain, Belgium

[4] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

来源：

PHYSICA B-CONDENSED MATTER | 2000年 / 276卷

关键词：

magnetic fluctuations; magnetic order; nanoscale objects;

D O I：

10.1016/S0921-4526(99)01620-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper we present X-ray and neutron diffraction data illustrating aspects of crystal and magnetic structures of ferromagnetic alpha-Fe and antiferromagnetic NiO nanoparticles, as well as inelastic neutron scattering studies of the magnetic fluctuations in NiO and in canted antiferromagnetic alpha-Fe2O3. In the inelastic case we make use of the fact that we can study both the superparamagnetic relaxation and collective magnetic excitations of the whole particle moment at the antiferromagnetic Bragg positions. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：830 / 832

页数：3

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