Analysis of the transport properties of epitaxial Fe and Cr films

被引：18

作者：

Schad, R

Belien, P

Verbanck, G

Moshchalkov, VV

Bruynseraede, Y

机构：

[1] Katholieke Univ Nijmegen, Inst Mat Res, NL-6525 ED Nijmegen, Netherlands

[2] Katholieke Univ Leuven, Vaste Stoffys & Magnetisme Lab, B-3001 Leuven, Belgium

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1998年 / 10卷 / 30期

关键词：

D O I：

10.1088/0953-8984/10/30/005

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Molecular beam epitaxy of Fe and Cr on single crystalline MgO(001) substrates produces films with very small defect concentrations. Accordingly, their low temperature transport properties art: characterized by extremely low bulk resistivities. The temperature dependence of the resistivity of the Cr films shows anomalies due to magnetic ordering effects around the Neel temperature T-N. We find values of T-N = 300 K which is close to the bulk value. The anomalous Hall effect of the Fe films shows typical ferromagnetic behaviour. The spontaneous Hall coefficient is proportional to the square of the resistivity indicative of side jump scattering. Fe/Cr superlattices grown under similar conditions are particularly suitable to study the influence of interface scattering on the giant magnetoresistance amplitude.

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页码：6643 / 6650

页数：8

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