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Room Temperature Magnetic Behavior of Sol-Gel Synthesized Mn Doped ZnO
Murtaza Saleem,Saadat A. Siddiqi*,Shahid Atiq,M. Sabieh Anwar,Saira Riaz
Author NameAffiliationE-mail
Murtaza Saleem Centre for Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan murtaza092@yahoo.com 
Saadat A. Siddiqi* Centre for Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan murtaza092@yahoo.com 
Shahid Atiq School of Science and Engineering, Lahore University of Management Sciences, Opposite Sector U,D.H.A. Lahore-54792, Pakistan murtaza092@yahoo.com 
M. Sabieh Anwar School of Science and Engineering, Lahore University of Management Sciences, Opposite Sector U,D.H.A. Lahore-54792, Pakistan murtaza092@yahoo.com 
Saira Riaz Centre for Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan murtaza092@yahoo.com 
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.
Key words:  Nanocrystal, Diluted magnetic semiconductor, Auto-combustion, Room tem-perature ferromagnetism
FundProject:
溶胶凝胶合成锰掺杂ZnO的室温磁性行为
Murtaza Saleem,Saadat A. Siddiqi*,Shahid Atiq,M. Sabieh Anwar,Saira Riaz
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.
关键词:  纳米晶,稀磁半导体,自燃法,室温铁磁性
DOI:10.1088/1674-0068/23/04/469-472
分类号: