Size-dependent structural parameters, optical, and magnetic properties of facile synthesized pure-phase BiFeO3
| Autor: | S. N. Kallaev, R. M. Emirov, N. M.-R. Alikhanov, F.F. Orudzhev, Dinara Sobola, Shikhgasan Ramazanov, S. A. Sadykov, Sultanakhmed Kh. Gadzhimagomedov, K. G. Abdulvakhidov, Murtazali Kh. Rabadanov |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Diffraction Materials science Band gap Size dependent Analytical chemistry Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Ferromagnetism Impurity law Phase (matter) 0103 physical sciences Calcination Crystallite Electrical and Electronic Engineering |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 32:13323-13335 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | The pure-phase BiFeO3 was obtained in one stage by solution combustion synthesis. The influence of the heat treatment process on the phase composition, magnetic, and optical properties was studied. The calcination of the powder led to a decrease in the fraction of the impurity phase from 7 to 1% and an increase in the crystallite size. X-ray diffraction revealed the formation of a pure phase upon heat treatment at 600 °C. The band gap of the samples increases from 1.91 to 2.06 eV with an increase in the crystallite size. M–H loops measured at room temperature showed a strong ferromagnetic character. For the initial powder, Ms was ~ 1.9 emu/g. The dependence of the magnetic properties on the crystallite size has been established. |
| Databáze: | OpenAIRE |
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