Structure, magnetic and magnetoresistance properties of Pr0.67Sr0.33MnO3 manganite oxide prepared by ball milling method
A sample of Pr0.67Sr0.33MnO3 nanoparticles was synthesized by the ball milling method. X-ray diffraction pattern of the sample showed orthorhombic system with Pnma space group. The average crystallite size of 110nm was obtained by both Scanning Electron Microscopy and X-ray diffraction. Magnetic mea...
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Published in | Journal of magnetism and magnetic materials Vol. 324; no. 13; pp. 2030 - 2033 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
01.07.2012
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | A sample of Pr0.67Sr0.33MnO3 nanoparticles was synthesized by the ball milling method. X-ray diffraction pattern of the sample showed orthorhombic system with Pnma space group. The average crystallite size of 110nm was obtained by both Scanning Electron Microscopy and X-ray diffraction. Magnetic measurements showed para-to-ferromagnetic transition with a Curie temperature of TC=269K. Electrical investigations showed that all our samples exhibit a semi-conducting behavior above TC and a metallic-like one at lower temperatures. The sample exhibited a large magnetoresistance of 30% at room temperature in an applied magnetic field of 2T. The transport and the magnetic properties were interpreted in terms of the existence of magnetic polarons in the sample.
► Magnetic and structural properties of Pr0.67Sr0.33MnO3 nanoparticles. ► Average particle size from 110nm fabricated by mechanical system. ► Large magnetoresistance of 30% at room temperature. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 0304-8853 |
DOI: | 10.1016/j.jmmm.2012.02.003 |