Structure, magnetic and magnetoresistance properties of Pr0.67Sr0.33MnO3 manganite oxide prepared by ball milling method

被引：12

作者：

Cherif, W. ^{[1
]}

Ellouze, M. ^{[1
]}

Lehlooh, A. -F. ^{[3
]}

Elhalouani, F. ^{[2
]}

Mahmoodd, S. H. ^{[4
]}

机构：

[1] Sfax Univ, Fac Sci, Sfax 3000, Tunisia

[2] Sfax Univ, Natl Sch Engn, Sfax 3038, Tunisia

[3] King Faisal Univ, Al Hufuf 31982, Saudi Arabia

[4] Univ Jordan, Amman, Jordan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2012年 / 324卷 / 13期

关键词：

Structure; Perovskite; Mecano-synthesis; Manganite; Magnetoresistance; MAGNETOTRANSPORT PROPERTIES;

D O I：

10.1016/j.jmmm.2012.02.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 T-C=269 K. Electrical investigations showed that all our samples exhibit a semi-conducting behavior above T-C 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. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：2030 / 2033

页数：4

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