Structure, Morphology, and Multiferroic Properties of Bi0.2La0.8 – xAlxFeO3 (x = 0.2, 0.4, 0.6 & 0.8) Nanoparticles
| Authors | S. Perugu1, G.B. Kiran2, T.A. Bbau3, B.V. Raghavaiah4 |
| Affiliations |
1Department of Physics, Acharya Nagarjuna University, Guntur-522510, India 2Department of Mechanical Engineering, Rajiv Gandhi University of Knowledge Technologies (RGUKT), Nuzvid-521201, India 3Department of Physics, Andhra University, Visakhapatnam-530003, India 4Department of Physics, Rajiv Gandhi University of Knowledge Technologies (RGUKT), Ongole-523001, India
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| Е-mail | bk_1381@rguktn.ac.in |
| Issue | Volume 17, Year 2025, Number 1 |
| Dates | Received 25 November 2024; revised manuscript received 15 February 2025; published online 27 February 2025 |
| Citation | S. Perugu, G.B. Kiran, et al., J. Nano- Electron. Phys. 17 No 1, 01009 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(1).01009 |
| PACS Number(s) | 78.67.Bf, 77.84. – s, 61.46. – w, 68.37.Hk, 78.20.Ci, 87.50.cm |
| Keywords | Nanoparticles (70) , Multiferroic, Structure (105) , Microscopy (40) , Dielectric constant (8) , Magnetic (78) . |
| Annotation |
In this research work, Bi0.2La0.8 – xAlxFeO3 (x = 0.2, 0.4, 0.6 & 0.8) (BLAFO) nanoparticles were prepared through hydrothermal technique. The trigonal phases were detected in the X-ray diffraction patterns. Secondary phases related to aluminum titanate and rutile were found. The FESEM and HRTEM images revealed the formation of nanorods-like structures due to the nucleation process. The dielectric properties expressed the space charge polarization and Debye-type relaxations in the frequency-dependent dielectric constant plots. Similarly, the dielectric versus frequency plots showed multiple relaxations. The magnetic hysteresis curves showed a decreasing trend in magnetization and magnetic moment. The LAS plots were shown to indicate the saturation magnetization. The ferroelectric hysteresis loops revealed the banana shape for all the samples.Keywords: Nanoparticles, Multiferroic, Structure, Microscopy, Dielectric constant, Magnetic.У даній дослідницькій роботі наночастинки Bi0.2La0.8 – xAlxFeO3 (x 0.2, 0.4, 0.6 & 0.8) (BLAFO) були отримані за допомогою гідротермальної техніки. На рентгенівських дифрактограмах спостерігались тригональні фази та вторинні фази, пов'язані з наявністю титанату алюмінію і рутила. Зображення FESEM і HRTEM показали утворення нанострижневих структур внаслідок процесу зародження. Діелектричні властивості виражають поляризацію просторового заряду та релаксації типу Дебая на частотно-залежних графіках діелектричної проникності. Подібним чином, графіки залежності діелектрика від частоти показали численні релаксації. Криві магнітного гістерезису вказують на тенденцію до зменшення намагніченості та магнітного моменту. На залежностях LAS наведена намагніченість насичення. Сегнетоелектричні петлі гістерезису для всіх зразків мають форму «банана». |
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