Low-Temperature Electrical Resistivity of Bilayered LaSr2Mn2O7 Manganite

Low-temperature transport and magneto-resistance properties were systemically studied for the bilayered polycrystalline LaSr 2 Mn 2 O 7 manganite under an applied magnetic field from 0 to 9 T. The results obtained from the resistivity measurements between 70 and 130 K were fitted using the electron–...

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Bibliographic Details
Published in:Journal of low temperature physics 2016-06, Vol.183 (5-6), p.359-370
Main Authors: Ehsani, M. H., Mehrabad, M. Jalali, Kameli, P., Ghazi, M. E., Razavi, F. S.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Condensed Matter Physics
Magnetic Materials
Magnetism
Physics
Physics and Astronomy
Online Access:Get full text
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Summary:Low-temperature transport and magneto-resistance properties were systemically studied for the bilayered polycrystalline LaSr 2 Mn 2 O 7 manganite under an applied magnetic field from 0 to 9 T. The results obtained from the resistivity measurements between 70 and 130 K were fitted using the electron–electron (e–e) and electron–magnon (e–m) scattering models. The temperature dependence of resistivity showed an upturn behavior at low temperatures ( ∼ T < 45 K) under various applied magnetic fields. Best fits were obtained by using a variable-range hopping model. The magneto-resistance behavior observed at low temperatures supports the magnetic properties of the sample.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-016-1520-1