Magnetoresistance scaling in the layered cobaltate Ca 3 Co 4 O 9

P. Limelette; J. Soret; H. Muguerra; D. Grebille

Magnetoresistance scaling in the layered cobaltate Ca 3 Co 4 O 9

P. Limelette ¹ J. Soret ¹ H. Muguerra ² D. Grebille ²

1 LEMA - Laboratoire d'Electrodynamique des Matériaux Avancés

2 CRISMAT - Laboratoire de cristallographie et sciences des matériaux

Abstract : 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.

Document type :

Journal articles

Domain :

Physics [physics] / Condensed Matter [cond-mat] / Strongly Correlated Electrons [cond-mat.str-el]

Complete list of metadatas

Cited literature [25 references] Display Hide Download

https://hal-univ-tours.archives-ouvertes.fr/hal-01870078
Contributor : Patrice Limelette <>
Submitted on : Friday, September 7, 2018 - 10:34:27 AM
Last modification on : Tuesday, April 2, 2019 - 1:35:57 AM
Long-term archiving on : Saturday, December 8, 2018 - 1:59:54 PM

limelette-2008-PRB-77-245123.p...

Publisher files allowed on an open archive

Magnetoresistance scaling in the layered cobaltate Ca 3 Co 4 O 9

File

Identifiers

Collections

Citation

Export

Metrics

89

87

Contact

Magnetoresistance scaling in the layered cobaltate Ca 3 Co 4 O 9

File

Identifiers

Collections

Citation

Export

Share

Metrics

89

87

Contact