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- Title
Near infrared emission and enhanced ferromagnetism in Fe doped SrSnO<sub>3</sub> perovskite structured nanorods.
- Authors
Muralidharan, M.; Thiyagarajan, R.; Sivakumar, K.; Sivaji, K.
- Abstract
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.
- Subjects
FERROMAGNETISM; PEROVSKITE; NANORODS; MAGNETIC properties; SCANNING electron microscopy; PHOTOLUMINESCENCE; NANOPARTICLES
- Publication
Journal of Materials Science: Materials in Electronics, 2019, Vol 30, Issue 5, p4634
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-019-00756-9