Scanning probe microscopy on magnetic colloidal particles

被引：22

作者：

Rasa, M ^{[1
]}

Philipse, AP ^{[1
]}

机构：

[1] Univ Utrecht, Debye Inst, Vant Hoff Lab Phys & Colloid Chem, NL-3584 CH Utrecht, Netherlands

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 252卷 / 1-3期

关键词：

colloidal nanoparticles; atomic force microscopy; magnetic force microscopy; granulometry;

D O I：

10.1016/S0304-8853(02)00643-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report some first results on magnetite and iron nanoparticles studied with atomic force microscopy (AFM). AFM images the particles on a smooth substrate, and their lateral diameter, height and polydispersity are determined and discussed. The use of magnetic force microscopy (MFM) on such small particles is explored both experimentally and theoretically. We present models which allow to estimate with MFM the magnetic moment of a single superparamagnetic nanosphere, which cannot be done with other techniques. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：101 / 103

页数：3