Crucial role of sol-gel synthesis in the structural and magnetic properties of LaFe0.5(Co/Ni)0.5O3 perovskites

被引：14

作者：

Solanki, Vandana ^{[1
]}

Das, Saptarshi ^{[1
]}

Kumar, Satendra ^{[1
]}

Seikh, Md Motin ^{[2
]}

Raveau, Bernard ^{[3
]}

Kundu, Asish K. ^{[1
]}

机构：

[1] Indian Inst Informat Technol, Discipline Phys, Design & Mfg Jabalpur, Dumna Airport Rd, Jabalpur 482005, Madhya Pradesh, India

[2] Visva Bharati Univ, Dept Chem, Santini Ketan 731235, W Bengal, India

[3] ENSICAEN UMR6508, Lab CRISMAT, 6 Bd Marechal Juin, F-14050 Caen 4, France

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2017年 / 82卷 / 02期

关键词：

Sol-gel synthesis; Orthoferrites; Ferromagnetic; Antiferromagnetic; MICROWAVE-ASSISTED SYNTHESIS; LAFEO3;

D O I：

10.1007/s10971-017-4319-x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Iron-based perovskites LaFe0.5M0.5O3, with the orthorhombic (S.G. Pbnm) and rhombohedral (S.G. R-3c) structure for M=Co and Ni, respectively were synthesized using the sol-gel method, in contrast to the literature results. Magnetic investigations reveal that LaFe0.5Co0.5O3 is a canted antiferromagnet and reaches a magnetic transition of 370 K, i.e., much above the 300 K value observed by previous authors, whereas LaFe0.5Ni0.5O3 is antiferromagnetic at low temperature. [GRAPHICS] . The sol-gel synthesized LaFe0.5Co0.5O3 perovskite to be stabilized at room temperature with a pure orthorhombic phase. The magnetization behavior reveals the perovskite is canted antiferromagnet at low temperature.

引用

页码：536 / 540

页数：5

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