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Title: Magnetic transitions and magneto-transport in epitaxial Pr0.5Sr0.5MnO3 thin films
Authors: Wagner, P ×
Metlushko, V
Van Bael, Margriet
Vullers, RJM
Trappeniers, Lieven
Vantomme, André
Vanacken, Johan
Kido, G
Moshchalkov, Victor
Bruynseraede, Yvan #
Issue Date: Apr-1996
Publisher: Les Editions de physique
Series Title: Journal de Physique IV vol:6 issue:C3 pages:309-314
Abstract: Epitaxial thin films of the magnetic perovskite Pr0.5Sr0.5MnO3 were prepared by dc-magnetron sputtering, structurally characterized by x-ray diffraction and their physical properties investigated by magnetization and electrical transport measurements. Ferromagnetic ordering appears in zero-field at 263 K, followed by a second transition into an antiferromagnetic state at 160 K. The zero-field resistivity has a semiconducting behaviour according to Mott's law and becomes quasi-metallic only within the ferromagnetic state, whose temperature range call be extended by applying an external magnetic field. The negative magnetoresistance effect increases systematically with decreasing temperature and reaches a value of 700 % at 1.5 K in a field of 12 T. For temperatures below 75 K we observed additionally a memory effect, showing up as a persistent, field induced lowering of sample resistivity.
URI: 
ISSN: 1155-4339
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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