Studies of magnetoresistance and Hall effect in insulating Fe/SiO2 granular films

被引：0
|
作者：
Aronzon, BA
Likalter, AA
Rylkov, VV
Sarychev, AK
Sedova, MA
Varfolomeev, AE
机构：
[1] Sci Ctr Appl Problems Electrodynam, Moscow 127412, Russia
[2] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Moscow 123182, Russia
来源：
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1998年 / 205卷 / 01期
关键词：
D O I：
10.1002/(SICI)1521-3951(199801)205:1<151::AID-PSSB151>3.3.CO;2-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The Hall effect and magnetoresistance in Fe/SiO2 granular metals have been studied below;he metal-insulator transition in the regime of hopping conductivity. The Hall resistivity rises with decreasing Fe fraction and its value is much higher than that expected. The magnetoresistance is negative in close vicinity of the transition point and is positive far away from it. The even voltage between Hall probes reflects the reconstruction of percolation cluster showing the absence of self-averaging.
引用
收藏
页码：151 / 155
页数：5
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