Role of B-site cation on the structure, magnetic and dielectric properties of nanosized La0.7Sr0.3Fe1-xMxO3 (M = Mn; Co and x=0, 0.5) perovskites

被引：12
作者：
Ghozza, M. H. [1 ]
Yahia, I. S. [2 ,3 ,4 ]
El-Dek, S., I [5 ]
机构：
[1] Marg High Inst Engn & Modern Technol, Basic Sci Dept, Cairo, Egypt
[2] King Khalid Univ, Res Ctr Adv Mat Sci RCAMS, POB 9004, Abha 61413, Saudi Arabia
[3] King Khalid Univ, Fac Sci, Dept Phys, Adv Funct Mat & Optoelect Lab AFMOL, POB 9004, Abha, Saudi Arabia
[4] Ain Shams Univ, Fac Educ, Phys Dept, Semicond Lab,Nanosci Lab Environm & Biomed Applic, Cairo 11757, Egypt
[5] Beni Suef Univ, Fac Postgrad Studies Adv Sci, Mat Sci & Nanotechnol Dept, Bani Suwayf, Egypt
来源：
MATERIALS RESEARCH EXPRESS | 2020年 / 7卷 / 05期
关键词：
LaFeO3; magnetization; conductivity; nanoparticles; perovskites; ELECTRICAL-PROPERTIES; TRANSPORT-PROPERTIES; BEHAVIOR; PARTICLE; SILVER; SIZE;
D O I：
10.1088/2053-1591/ab8ee2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The easiness of preparation and tailored properties of perovskite nanoparticles rendered them an important class of materials in the last decade. In this work, La0.7Sr0.3Fe1-xMxO3 (M = Mn, Co and x = 0, 0.5) orthoferrites were synthesized using combustion method and examined using X-ray diffraction. The orthorhombic structure was clearly obvious with Pbnm space group without the need of any thermal treatment. Field emission scanning electron microscopy (FESEM) accompanied by Energy-dispersive spectroscopy studies were also performed, evidencing the similarity of both nominal and chemical compositions for the studied orthoferrites. The thermal dependence of the dielectric properties was investigated (from room temperature to 698 K) in the frequency range (70 Hz-5 MHz). Magnetic properties were investigated at room temperature and discussed.
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页数：14
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