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

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, *rab(T) obeys t...

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Bibliographic Details
Published in:	Physica. B, Condensed matter Vol. 329-333; pp. 811 - 812
Main Authors:	Almasan, C C, Chen, X J, Zhang, C L, Gardner, J S, Sarrao, J L
Format:	Journal Article
Language:	English
Published:	01-05-2003
Online Access:	Get full text
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Summary:	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, rab(T) obeys the adiabatic small polaron hopping mechanism, while rc(T) follows an Arrhenius behavior with the same activation energy.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0921-4526
DOI:	10.1016/S0921-4526(02)02582-6