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The Advances in Structural, Optical and Magnetic Behaviour with Alumina Dopant's in Fe2Al2O6-δ Nano-crystalline Structure

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Title The Advances in Structural, Optical and Magnetic Behaviour with Alumina Dopant's in Fe2Al2O6-δ Nano-crystalline Structure
 
Creator Seema
Meenakshi
Bhatt, Praveen
Sharma, Rajesh
Dalal, Jyoti
 
Subject Al2O3-doped
Fe2O3 nanoparticles
XRD
FTIR
UV-Vis
Structural
Optical and Magnetic properties
 
Description 533-537
In this present work, Fe2O3 nanoparticles doped with different concentrations of aluminium oxide (Al2O3) (5%, 10%, and 20%) were synthesized by the modified co-precipitation method, and samples were calcined at 600 oC for a fixed duration 2 hours. The calcined samples were examined through X-ray diffraction (XRD) techniques and results reveal that rhombohedral crystalline structures were confirmed for all calcined samples and the crystallite size of the particle increased from 42.2 nm to 60.5 nm i.e. crystallite size increases with increase of in dopant concentration alumina in Fe2Al2O6-δ samples. The infrared spectroscopic results reveal that, as usual, peaks of hydroxyl group vibrations were found in band formation at about 3000 cm-1, 1650 cm-1 and the sharp peaks at 610, 614, and 617 cm-1 were attributed to O-Fe-O molecules vibrations whereas, 533 cm-1 were attributed by O-Al-O molecules vibrations. The optical band gap was calculated via tauc plot and calculated values show an inverse trend of 2.19 to 2.15 eV with an increase in dopant concentration alumina. Vibrating sample magnetometer (VSM) were used to analyze the magnetic characteristics of calcined samples and the results reveal that saturation magnetization is highest for dopant alumina 10% concentration (Ms = 50.6×10-2 emu/g) andcoercivity is highest for dopant alumina 5% concentration (Hc = 875.38Oe) respectively among all the calcined samples.
 
Date 2024-08-05T09:52:20Z
2024-08-05T09:52:20Z
2024-08
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/64320
https://doi.org/10.56042/ijpap.v62i7.10033
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.62(07) [July 2024]