Reinspection of formation of BiFe1-xMnxO3 solid solutions via low temperature sol-gel synthesis route

被引：5
|
作者：
Diliautas, Ramunas [1 ]
Beganskiene, Aldona [1 ]
Karoblis, Dovydas [1 ]
Mazeika, Kestutis [2 ]
Baltrunas, Dalis [2 ]
Zarkov, Aleksej [1 ]
Raudonis, Rimantas [1 ]
Kareiva, Aivaras [1 ]
机构：
[1] Vilnius Univ, Fac Chem & Geosci, Naugarduko 24, LT-03225 Vilnius, Lithuania
[2] State Res Inst Ctr Phys Sci & Technol, LT-02300 Vilnius, Lithuania
来源：
SOLID STATE SCIENCES | 2021年 / 111卷
关键词：
Bismuth ferrite-manganite; Sol-gel processing; Substitution effects; Magnetic properties; Mossbauer spectroscopy; MAGNETIC-PROPERTIES; CRYSTAL; TRANSITION; CERAMICS; BIMNO3;
D O I：
10.1016/j.solidstatesciences.2020.106458
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
In this study, BiFe1-xMnxO3 (BiFeMnO; x from 0 to 0.5) solid solutions were prepared by low temperature sol-gel processing. It was demonstrated that structural, magnetic and morphological properties of BiFeMnO samples are dependent on the chemical composition of the synthesized BiFe1-xMnxO3 solid solutions. The thermal behaviour of the Bi-Fe-Mn-O precursor gels was investigated by thermogravimetric and differential scanning calorimetry (TG-DSC) measurements. From X-ray diffraction (XRD) analysis it was observed that monophasic BiFe1-xMnxO3 samples have formed up to 25 mol% of substitution. The Rietveld analysis showed that the structure of BiFeMnO specimens can be indexed by rhombohedral or orthorhombic unit cell depending on Mn3+ content. Scanning electron microscopy (SEM) was used to investigate samples morphology and revealed, that smaller particles form when Mn3+ is present inside the structure. Moreover, magnetic properties of solid solutions were also investigated, and antiferromagnetism and weak ferromagnetism were observed for the samples.
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页数：6
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