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Structure,magnetic and magnetoresistance properties of Pr0.67Sr0.33MnO3 manganite oxide prepared by ball milling method |
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| Authors: | W Chérif M Ellouze A-F Lehlooh F Elhalouani SH Mahmood |
| Institution: | 1. Sfax University, Faculty of Sciences, B.P. 1171, 3000 Sfax, Tunisia;2. Sfax University, National School of Engineers, B.P. W, 3038, Tunisia;3. King Faisal University, Hofuf 31982, Saudia Arabia;4. University of Jordan, Amman, Jordan |
| Abstract: | 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 110 nm was obtained by both Scanning Electron Microscopy and X-ray diffraction. Magnetic measurements showed para-to-ferromagnetic transition with a Curie temperature of TC=269 K. 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 2 T. The transport and the magnetic properties were interpreted in terms of the existence of magnetic polarons in the sample. |
| Keywords: | Structure Perovskite Mecano-synthesis Manganite Magnetoresistance |
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