Tenfold magnetoconductance in a nonmagnetic metal film

被引：14

作者：

Butko, VY ^{[1
]}

DiTusa, JF

Adams, PW

机构：

[1] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70806 USA

[2] Russian Acad Sci, AF Ioffe Phys Tech Inst, PTI, St Petersburg 194021, Russia

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.85.162

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present magnetoconductance (MC) measurements of homogeneously disordered Be films (2e(2)/h)exp -(T-0/T)(1/2) The low field MC of the films is negative with G decreasing a factor of below T. In contrast the MC above T is strongly positive. Ar 8 T, G increases tenfold in perpendicular field and fivefold in parallel field. In the simpler parallel case, we observe field enhanced variable range hopping characterized by an attenuation of T-0 via the Zeeman interaction.

引用

页码：162 / 165

页数：4

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