Near infrared emission and enhanced ferromagnetism in Fe doped SrSnO3 perovskite structured nanorods
| Autor: | K. Sivaji, M. Muralidharan, Kandasamy Sivakumar, R. Thiyagarajan |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Photoluminescence Doping Analytical chemistry Coercivity Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science symbols.namesake Magnetization Ferromagnetism 0103 physical sciences symbols Nanorod Orthorhombic crystal system Electrical and Electronic Engineering Raman spectroscopy |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 30:4634-4643 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | SrSn1−xFexO3 (x = 0, 0.01, 0.03 and 0.05) nanorods prepared by chemical precipitation method was investigated for the effect of Fe doping on structural, optical and magnetic properties. X-ray diffraction pattern of the prepared samples indicated orthorhombic structure with considerable variation in the lattice parameters, confirming the Fe incorporation in Sr–Sn–O lattice. Electron microscopy studies revealed the surface morphology changes from rods with poly-dispersed particles to well-defined rod shapes, upon Fe doping. FTIR, Raman, X-ray photoelectron and UV–Vis spectroscopy results confirmed the presence of metal oxide vibrations, active Raman modes, oxygen vacancy and strong optical absorption, respectively. Photoluminescence studies showed an interesting feature of near-infrared emission for the Fe doped samples. Magnetization measurements at room temperature demonstrated dia- to ferro- magnetic phase transition as a result of increased Fe concentration. Fe 5% doped sample significantly exhibited an increased coercivity with a maximum at 2 K. The induced ferromagnetic behavior and near infrared emission in Fe doped SrSnO3 suggest the material for magneto-electronic device applications. |
| Databáze: | OpenAIRE |
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