Approximation of Electrical and Magneto Transport Properties of LSMO Thin Films

• Authors: V. Štrbík , M. Reiffers , Š. Chromik , M. Španková
• Languages of publication: EN

Abstracts

EN

We have used a three term polynomial expression to approximate electrical and magneto transport properties of epitaxial La_{0.67}Sr_{0.33}MnO_{3} (LSMO) thin films in wide temperature range (2-350 K) and in magnetic field up to 9 T. The first term is determined by a low temperature (T<20 K) residual resistivity ρ_{0} and this term is magnetic field independent. The second term describes the electron-electron scattering in LSMO, it shows ~ T^{2} dependence of resistivity up to temperature about 160 K and depends only weakly on magnetic field. The third term, proportional to ~ T^{4.5} dependence, describes a significant increase of resistivity in temperature range 160-350 K and due to its sensitivity to applied magnetic field it is possible to approximate temperature dependence of magnetorestivity below 350 K.

Keywords

EN

73.43.Qt; 75.47.-m; 75.70.-i

Discipline

• 75.70.-i: Magnetic properties of thin films, surfaces, and interfaces(for magnetic properties of nanostructures, see 75.75.-c)
• 75.47.-m: Magnetotransport phenomena; materials for magnetotransport(for spintronics, see 85.75.-d; see also 72.25.-b Spin polarized transport; 72.15.Gd Galvanomagnetic and other magnetotransport effects; for magnetotransport effects in thin films, see 73.50.Jt; see also 73.43.Qt Magnetoresistance)
• 73.43.Qt: Magnetoresistance(see also 75.47.-m Magnetotransport phenomena; materials for magnetotransport in magnetic properties and materials)

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 210-211

Dates

published

2014-07

Contributors

author

V. Štrbík

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 84104 Bratislava, Slovakia

author

M. Reiffers

• Faculty of Humanities and Natural Sciences, University of Prešov, Ul. 17. novembra 1, 081 16 Prešov, Slovakia

author

Š. Chromik

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 84104 Bratislava, Slovakia

author

M. Španková

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 84104 Bratislava, Slovakia

References

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• [4] V. Štrbík, Š. Chromik, J. of Eletrical Engineering 63, 270 (2012), doi: 10.2478/v10187-012-0039-1
• [5] Š. Chromik, V. Štrbík, E. Dobročka, A. Dujavová, M. Reiffers, J. Liday, M. Španková, Appl. Surf. Sci 269, 98 (2013) , doi: 10.1016/j.apsusc.2012.10.005

Identifiers

DOI

10.12693/APhysPolA.126.210