Self-propagating high-temperature synthesis and magnetic features of Fe-Al2O3 granulated films

被引：2

作者：

Myagkov, VG

Polyakova, KP

Bondarenko, GN

Polyakov, VV

机构：

[1] Russian Acad Sci, Siberian Div, Kirensky Inst Phys, Krasnoyarsk 660036, Russia

[2] Russian Acad Sci, Siberian Div, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia

来源：

PHYSICS OF THE SOLID STATE | 2003年 / 45卷 / 01期

关键词：

D O I：

10.1134/1.1537424

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The classical solid-phase reaction between Fe2O3 and Al layers in thin films is initiated. It is shown that, in the reaction products, Fe granulated films are formed in the Al2O3 nonconducting matrix. Analysis of the reaction equation demonstrates that the volume fraction of iron in the granulated films is less than the percolation threshold. This determines the magnetic properties of iron clusters in a superparamagnetic state. It is assumed that the nanocrystalline microstructure exists in thin films after solid-phase reactions proceeding under conditions of self-propagating high-temperature synthesis. (C) 2003 MAIK "Nauka/Interperiodica".

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页码：138 / 140

页数：3

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