Superparamagnetism and giant magnetoresistance in partially milled and annealed Fe0.30Cr0.70

被引：7

作者：

Bellouard, C

Delcroix, P

Le Caër, G

机构：

[1] Univ Nancy 1, Phys Mat Lab, CNRS UMR 7556, FR-54506 Vandoeuvre Nancy, France

[2] Ecole Mines, Sci & Genie Mat Met Lab, UMR CNRS 7584, FR-54042 Nancy, France

来源：

METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, PTS 1 AND 2 | 2000年 / 343-3卷

关键词：

ball milling; magnetoresistance; nanostructured materials; superparamagnetism;

D O I：

10.4028/www.scientific.net/MSF.343-346.819

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetization and magnetoresistance have been measured in partially milled and in partially milled and annealed Fe0.30Cr0.70 powders. Both techniques complement Mossbauer spectrometry results by evidencing a large fraction of small superparamagnetic grains, with Cr contents smaller than the average one, which play a role in the mixing mechanism which takes place a scale of some tens nanometers.

引用

页码：819 / 824

页数：6