Magnetoresistance scaling in the layered cobaltate Ca3Co4O9

被引：16

作者：

Limelette, P. ^{[1
]}

Soret, J. C. ^{[1
]}

Muguerra, H. ^{[2
]}

Grebille, D. ^{[2
]}

机构：

[1] Univ Tours, Lab LEMA, UMR CNRS CEA 6157, UFR Sci, F-37200 Tours, France

[2] Univ Caen, Lab CRISMAT, UMR CNRS ENSICAEN 6508, F-14050 Caen, France

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.77.245123

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the low-temperature magnetic-field dependences of both the resistivity and the magnetization in the misfit cobaltate Ca(3)Co(4)O(9) from 60 K down to 2 K. The measured negative magnetoresistance reveals a scaling behavior with the magnetization which demonstrates a spin dependent scattering mechanism. This scaling is also found to be consistent with a shadowed metalliclike conduction over the whole temperature range. By explaining the observed transport crossover, this result sheds a new light on the nature of the elementary excitations relevant to the transport.

引用

页数：5

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