Electronic transport of bilayer manganite La1.2Sr1.8Mn2O7

被引：5

作者：

Almasan, CC ^{[1
]}

Chen, XJ

Zhang, CL

Gardner, JS

Sarrao, JL

机构：

[1] Kent State Univ, Dept Phys, Kent, OH 44242 USA

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 329卷

关键词：

colossal magnetoresistance; electronic transport; scattering mechanism;

D O I：

10.1016/S0921-4526(02)02582-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report magnetoresistivity measurements on a La1.2Sr1.8Mn2O7 single crystal. The charge transport in the ferromagnetic phase is dominated by two-magnon scattering in the high T range and by weak localization effects at lower T, in the non-metallic regime. In the paramagnetic phase, rho(ab)(T) obeys the adiabatic small polaron hopping mechanism, while rho(c)(T) follows an Arrhenius behavior with the same activation energy. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：811 / 812

页数：2