Magnetic coupling properties of rare-earth metals (Gd, Nd) doped ZnO: First-principles calculations

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	Magnetic coupling properties of rare-earth metals (Gd, Nd) doped ZnO: First-principles calculations
	Shi HL ; Zhang P ; Li SS ; Xia JB
刊名	journal of applied physics
	2009
卷号	106 期号:2 页码:art. no. 023910
关键词	FERROMAGNETIC SEMICONDUCTOR BAND-STRUCTURE STABILIZATION INJECTION
ISSN号	0021-8979
通讯作者	shi hl chinese acad sci inst semicond state key lab superlattices & microstruct beijing 100083 peoples r china. e-mail address: hlshi@semi.ac.cn
中文摘要	the electronic structure and magnetic coupling properties of rare-earth metals (gd, nd) doped zno have been investigated using first-principles methods. we show that the magnetic coupling between gd or nd ions in the nearest neighbor sites is ferromagnetic. the stability of the ferromagnetic coupling between gd ions can be enhanced by appropriate electron doping into zno gd system and the room-temperature ferromagnetism can be achieved. however, for zno nd system, the ferromagnetism between nd ions can be enhanced by appropriate holes doping into the sample. the room-temperature ferromagnetism can also be achieved in the n-conducting zno nd sample. our calculated results are in good agreement with the conclusions of the recent experiments. the effect of native defects (v-zn, v-o) on the ferromagnetism is also discussed. (c) 2009 american institute of physics. [doi 10.1063/1.3176490]
学科主题	半导体物理
收录类别	SCI
资助信息	national basic research program of china g2009cb929300 national natural science foundation of china 60521001 60776061this work was supported by the national basic research program of china (973 program) under grant no. g2009cb929300 and the national natural science foundation of china under grant nos. 60521001 and 60776061.
语种	英语
公开日期	2010-03-08
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/7049]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Shi HL,Zhang P,Li SS,et al. Magnetic coupling properties of rare-earth metals (Gd, Nd) doped ZnO: First-principles calculations[J]. journal of applied physics,2009,106(2):art. no. 023910.
APA	Shi HL,Zhang P,Li SS,&Xia JB.(2009).Magnetic coupling properties of rare-earth metals (Gd, Nd) doped ZnO: First-principles calculations.journal of applied physics,106(2),art. no. 023910.
MLA	Shi HL,et al."Magnetic coupling properties of rare-earth metals (Gd, Nd) doped ZnO: First-principles calculations".journal of applied physics 106.2(2009):art. no. 023910.