| 溶胶凝胶合成锰掺杂ZnO的室温磁性行为 |
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| 作者姓名： | Murtaza Saleem Saadat A. Siddiqi Shahid Atiq M. Sabieh Anwar Saira Riaz |
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| 作者单位： | 旁遮普大学固态物理中心，拉赫尔54590;旁遮普大学固态物理中心，拉赫尔54590;拉赫尔管理科学大学科学与工程学院，拉赫尔54792;拉赫尔管理科学大学科学与工程学院，拉赫尔54792;旁遮普大学固态物理中心，拉赫尔54590 |
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| 摘 要： | 通过溶胶凝胶自燃法合成锰掺杂氧化锌纳米晶体， 研究了Mn掺杂ZnO稀磁半导体(简称DMS)的性质．X射线衍射光谱表明，锰掺杂氧化锌保留纤锌矿型状氧化锌六角晶体结构．采用能量色散X射线能谱和扫描电子显微镜分别对成分和形态进行研究．温度依赖的电阻率显示了DMS的半导体材料行为．振动样品磁强计测定的室温磁性行为，揭示了锰掺杂氧化锌的铁磁性和反磁性特性.
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| 关 键 词： | 纳米晶，稀磁半导体，自燃法，室温铁磁性 |
| 收稿时间： | 2010/4/11 0:00:00 |
Room Temperature Magnetic Behavior of Sol-Gel Synthesized Mn Doped ZnO |
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| Murtaza Saleem,Saadat A. Siddiqi,Shahid Atiq,M. Sabieh Anwar,Saira Riaz.Room Temperature Magnetic Behavior of Sol-Gel Synthesized Mn Doped ZnO[J].Chinese Journal of Chemical Physics,2010,23(4):469-472. |
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| Authors: | Murtaza Saleem Saadat A Siddiqi Shahid Atiq M Sabieh Anwar and Saira Riaz |
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| Institution: | Centre for Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan;Centre for Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan;School of Science and Engineering, Lahore University of Management Sciences, Opposite Sector U,D.H.A. Lahore-54792, Pakistan;School of Science and Engineering, Lahore University of Management Sciences, Opposite Sector U,D.H.A. Lahore-54792, Pakistan;Centre for Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, 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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