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Structural, morphological, magnetic and spectral studies of Bi 3+ substituted YFeO 3 Nano-powders: Obtained by sol-gel synthesis
Journal of Electroceramics ( IF 1.7 ) Pub Date : 2020-05-01 , DOI: 10.1007/s10832-020-00210-x
Lokesh Suthar , Falguni Bhadala , Priyanka Kumari , M. Roy

Nano powders of Bismuth substituted Yttrium ferrite have been synthasized by standard Sol-Gel method with maintaining the pH level of solution at 9 on the pH scale. The X-ray diffraction spectra concludes that these materials are well crystallized and lie in the desired single orthorhombic phase. Scanning Electron Microscopy (SEM) measurement suggests that each sample possesses a certain degree of homogeneity which follow increasing trend with enhanced doping concentration. EDAX measurement confirms the successful substitution of Bismuth for Yttrium cation site and also varify that the chemical compositions are in appropriate molar ratio which is consistant with the desired stoichiometry. Hysteresis loop recorded at 300 K indicates the anti-ferromagnetic nature of the prepared samples. The high value of coercivity (14 kOe to 24 kOe) predict their use in magnetic storage devices. The FT-IR spectra recorded in the fingerprint region (800 cm−1 to 400 cm−1) are showing various metal oxide bonds observed in the form of absorption bands.



中文翻译:

Bi 3+取代的YFeO 3纳米粉的结构,形态,磁性和光谱研究:通过溶胶-凝胶合成获得

铋取代的钇铁氧体的纳米粉已通过标准的Sol-Gel方法合成,并保持溶液的pH值在pH范围内为9。X射线衍射光谱得出结论,这些材料充分结晶并且位于期望的单斜方晶相中。扫描电子显微镜(SEM)测量表明,每个样品都具有一定程度的均匀性,随着掺杂浓度的增加,趋势也随之增加。EDAX测量证实铋成功取代了钇阳离子部位,并且证实了化学组成的摩尔比合适,与所需的化学计量一致。在300 K处记录的磁滞回线表明所制备样品的反铁磁性质。高矫顽力值(14 kOe至24 kOe)预示了它们在磁存储设备中的使用。指纹区(800 cm)中记录的FT-IR光谱-1至400cm -1)显示出以吸收带的形式观察到的各种金属氧化物键。

更新日期:2020-05-01
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