Effect of Gadolinium Doping on the Structural and Electrical Properties of Pr0.5-x Gd x Sr0.5MnO3(x=0.0-0.1) Manganites

被引：20

作者：

Bourouina, M. ^{[1
]}

Krichene, A. ^{[1
]}

Thaljaoui, R. ^{[1
,2
,3
]}

Pekala, M. ^{[3
]}

Boujelben, W. ^{[1
]}

机构：

[1] Univ Sfax, Fac Sci Sfax, Phys Mat Lab, Sfax 3000, Tunisia

[2] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland

[3] Univ Warsaw, Dept Chem, PL-02089 Warsaw, Poland

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2015年 / 28卷 / 09期

关键词：

Perovskite manganites; X-ray diffraction; SEM; Electrical properties; Magnetoresistance effect; TRANSPORT-PROPERTIES; MAGNETIC-PROPERTIES; MAGNETOTRANSPORT PROPERTIES; THIN-FILMS; MAGNETORESISTANCE; PR0.5SR0.5MNO3; TEMPERATURE; X=0; TRANSITION; CROSSOVER;

D O I：

10.1007/s10948-015-3097-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the effect of gadolinium doping on the structural and electrical properties of Pr0.5-x Gd (x) Sr0.5MnO3(x=0.0-0.1) manganites. Our samples have been elaborated using the solid-state reaction, at high temperature. Rietveld refinement of the X-ray diffraction patterns has shown that all our samples are single phase and crystallize in the orthorhombic structure with Pbnm space group. Scanning electron microscopy (SEM) revealed that the grains are irregularly spherical-like shaped with mean sizes of 380, 450, and 460 nm for x=0,0.05, and 0.1, respectively. Increasing Gd content enhances electrical resistivity values. Extrinsic magnetoresistance is observed at low temperature.

引用

页码：2743 / 2750

页数：8

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