Effects of Cr and Fe co-doping on structural, optical, electrical and magnetic properties of titanium dioxide (TiO2)
| Autor: | Farooq Bashir, Safia Anjum, Rehana Zia, Anum Dar, Salma Waseem, Lubna Mustafa |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
grain size
Materials science Mechanical Engineering dilute magnetic semiconductors Metallurgy Doping Magnetic semiconductor Condensed Matter Physics Grain size resistivity chemistry.chemical_compound chemistry Mechanics of Materials Electrical resistivity and conductivity Rutile Titanium dioxide TA401-492 General Materials Science magnetic properties rutile Materials of engineering and construction. Mechanics of materials |
| Zdroj: | Materials Science-Poland, Vol 33, Iss 3, Pp 508-514 (2015) |
| Popis: | A series of Ti0.9Fe0.1-xCrxO2 (where x = 0.0, 0.02, 0.04, 0.6, 0.08, 0.10) was synthesized using the powder metallurgy route. The structural, morphological, magnetic, optical and electrical properties were investigated by X-ray diffractometry (XRD), Raman spectroscopy, scanning electron microscopy (SEM), vibrating sample magnetometry (VSM), UV-Vis spectroscopy and four probe technique, respectively. The rutile phase was confirmed by XRD analysis which was also verified by Raman spectroscopy. It was observed that the grain size increased as the concentration of Cr increased. M-H loops extracted from VSM analysis revealed anti-ferromagnetic, weak ferromagnetic and paramagnetic behaviors at room temperature. The band gap energy and resistivity measurements exhibited the semiconducting nature of Ti0.9Fe0.1-xCrxO2 based diluted magnetic semiconductors. |
| Databáze: | OpenAIRE |
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