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	Low-temperature magnetotransport behaviors of heavily mn-doped (ga,mn)as films with high ferromagnetic transition temperature
	Chen, L.; Yan, S.; Xu, P. F.; Lu, J.; Wang, W. Z.; Deng, J. J.; Qian, X.; Ji, Y.; Zhao, J. H.
刊名	Applied physics letters
	2009-11-02
卷号	95期号:18页码:3
关键词	Annealing Curie temperature Doping profiles Electrical resistivity Ferromagnetic materials Gallium arsenide Gallium compounds Galvanomagnetic effects Hopping conduction Iii-v semiconductors Manganese compounds Semiconductor doping Semiconductor thin films Semimagnetic semiconductors
ISSN号	0003-6951
DOI	10.1063/1.3259821
通讯作者	Zhao, j. h.(jhzhao@red.semi.ac.cn)
英文摘要	We report the low-temperature magnetotransport behaviors of (ga,mn)as films with the nominal mn concentration x larger than 10%. the ferromagnetic transition temperature t-c can be enhanced to 191 k after postgrowth annealing (ga,mn)as with x=20%. the temperature t-m, corresponding to the resistivity minimum in the curve of resistivity versus temperature at temperature below t-c, depends on mn concentration, annealing condition, and magnetic field. moreover, we find that the variable-range hopping may be the main conductive mechanism when temperature is lower than t-m.
WOS关键词	SEMICONDUCTORS
WOS研究方向	Physics
WOS类目	Physics, Applied
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000271666800047
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2427721
专题	半导体研究所
通讯作者	Zhao, J. H.
作者单位	Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Chen, L.,Yan, S.,Xu, P. F.,et al. Low-temperature magnetotransport behaviors of heavily mn-doped (ga,mn)as films with high ferromagnetic transition temperature[J]. Applied physics letters,2009,95(18):3.
APA	Chen, L..,Yan, S..,Xu, P. F..,Lu, J..,Wang, W. Z..,...&Zhao, J. H..(2009).Low-temperature magnetotransport behaviors of heavily mn-doped (ga,mn)as films with high ferromagnetic transition temperature.Applied physics letters,95(18),3.
MLA	Chen, L.,et al."Low-temperature magnetotransport behaviors of heavily mn-doped (ga,mn)as films with high ferromagnetic transition temperature".Applied physics letters 95.18(2009):3.

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