Room Temperature Magnetic Behavior of Sol-Gel Synthesized Mn Doped ZnO |
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Authors: | Murtaza Saleem Saadat A. Siddiqi Shahid Atiq M. Sabieh Anwar Saira Riaz |
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Affiliation: | 1.Centre for Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan2.School of Science and Engineering, Lahore University of Management Sciences, Opposite Sector U,D.H.A. Lahore-54792, Pakistan |
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Abstract: | Mn doped ZnO nano-crystallites were synthesized by state of the art sol-gel derived auto-combustion technique. As-burnt powder was investigated with different characterization techniques to explore the properties of Mn doped ZnO dilute magnetic semiconductor. X-ray diffraction measurements indicate that Mn doped ZnO retain wurtzite type hexagonal crystal structure like ZnO. Compositional and morphological studies were carried out by energy dispersive X-ray analysis and scanning electron microscopy, respectively. Tempera-ture dependent resistivity of the sample exhibited the semiconducting behavior of the DMS material. Room temperature magnetic properties determined by vibrating sample magne-tometer, revealed the presence of ferromagnetic and diamagnetic contributions in Mn doped ZnO. |
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Keywords: | Nanocrystal Diluted magnetic semiconductor Auto-combustion Room tem-perature ferromagnetism |
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