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《Materials Science and Engineering of Powder Metallurgy》 2010-05
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Curie temperature of P-type diluted magnetic semiconductor materials

GUAN Yu-qin,CHEN Yu,ZHAO Chun-wang (Department of Physics,Inner Mongolia University of Technology,Hohhot 010051,China)  
The scientific and technological as well as industrial circles are of increasing concern to diluted magnetic semiconductor(DMS) materials.In the present,based on the ZENER model,the Curie temperature of the DMS materials was studied.The results show that the Curie temperature of the DMS materials formed by doping with low-valence elements is higher in the cases when the matrix material doped with different kinds of metallic elements.When the antiferromagnetic exchange coupling is considered,the difference between the Curie temperatures of DMS materials formed by doping low-valence elements and high-valence elements respectively becomes more obvious than that of the case where antiferromagnetic exchange coupling is absent.In addition,this difference increases with the increasing of relative strength for the antiferromagnetic exchange coupling.The present study may serve as a reference for obtaining high Curie temperature DMS materials.
【Fund】: 国家自然科学基金资助项目(10862002);; 内蒙古工业大学校基金(X200930)
【CateGory Index】: O472.5
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