Anisotropic magnetism and spin-dependent transport in Co nanoparticle embedded ZnO thin films

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	Anisotropic magnetism and spin-dependent transport in Co nanoparticle embedded ZnO thin films
	Li, DY ; Zeng, YJ ; Pereira, LMC ; Batuk, D ; Hadermann, J ; Zhang, YZ ; Ye, ZZ ; Temst, K ; Vantomme, A ; Van Bael, MJ ; Van Haesendonck, C
刊名	JOURNAL OF APPLIED PHYSICS
	2013
卷号	114 期号:3
ISSN号	0021-8979
通讯作者	Zeng, YJ (reprint author), Katholieke Univ Leuven, Lab Solid State Phys & Magnetism, Celestijnenlaan 200 D, BE-3001 Louvain, Belgium.
中文摘要	Oriented Co nanoparticles were obtained by Co ion implantation in crystalline ZnO thin films grown by pulsed laser deposition. Transmission electron microscopy revealed the presence of elliptically shaped Co precipitates with nanometer size, which are embedded in the ZnO thin films, resulting in anisotropic magnetic behavior. The low-temperature resistance of the Co-implanted ZnO thin films follows the Efros-Shklovskii type variable-range-hopping. Large negative magnetoresistance (MR) exceeding 10% is observed in a magnetic field of 1 T at 2.5K and the negative MR survives up to 250K (0.3%). The negative MR reveals hysteresis as well as anisotropy that correlate well with the magnetic properties, clearly demonstrating the presence of spin-dependent transport. (C) 2013 AIP Publishing LLC.
资助信息	Research Foundation - Flanders (FWO, Belgium); Belgian Interuniversity Attraction Poles [IAP P6/42]; Flemish Concerted Research Action [GOA/09/006]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56775]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Li, DY,Zeng, YJ,Pereira, LMC,et al. Anisotropic magnetism and spin-dependent transport in Co nanoparticle embedded ZnO thin films[J]. JOURNAL OF APPLIED PHYSICS,2013,114(3).
APA	Li, DY.,Zeng, YJ.,Pereira, LMC.,Batuk, D.,Hadermann, J.,...&Van Haesendonck, C.(2013).Anisotropic magnetism and spin-dependent transport in Co nanoparticle embedded ZnO thin films.JOURNAL OF APPLIED PHYSICS,114(3).
MLA	Li, DY,et al."Anisotropic magnetism and spin-dependent transport in Co nanoparticle embedded ZnO thin films".JOURNAL OF APPLIED PHYSICS 114.3(2013).