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Title: Investigation of magnetoresistance and its anisotropy of thin polycrystalline La0.83Sr0.17MnO3 films in high pulsed magnetic fields / N. Žurauskienė, S. Keršulis, L. Medišauskas, S. Tolvaišienė.
Authors: Žurauskienė, Nerija
Keršulis, Skirmantas
Medišauskas, L.
Tolvaišienė, Sonata
Issue Date: 2011
Publisher: Polish Academy of Sciences
Citation: Žurauskienė, N.; Keršulis, S.; Medišauskas, L.; Tolvaišienė, S. 2011. Investigation of magnetoresistance and its anisotropy of thin polycrystalline La0.83Sr0.17MnO3 films in high pulsed magnetic fields, Acta Physica Polonica A. 14th International Symposium on Ultrafast Phenomena in Semiconductors. Vilnius, Lithuania, August 23-25, 2010 Warszawa : Polish Academy of Sciences..119(2): 186-188
Series/Report no.: 119;2
Abstract: The results on the study of grain boundary effects and influence of film deposition conditions on the magnetoresistance and its anisotropy in polycrystalline La0.83Sr0.17MnO3 films are presented. The magnetoresistance was measured in high pulsed magnetic fields up to 25 T (pulse duration approximate to 0.6 ms) in the temperature range of 120-300 K. A modified Mott hopping model was applied to describe the main behavior of high-field magnetoresistance for both ferromagnetic and paramagnetic phases of the polycrystalline films by taking into account the demagnetization field of the films measured in low magnetic fields perpendicular to film plane. It was also found that to obtain the higher magnetoresistance saturation field at room temperature it is necessary to use the films with smaller crystallites (D approximate to 100 nm). Such films could be used for design of megagauss pulsed magnetic field sensors.
URI: http://dspace.vgtu.lt/handle/1/1929
ISSN: 0587-4246 |
Appears in Collections:Moksliniai straipsniai / Research articles

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