Room-temperature giant magnetoresistance over one billion percent in a bare graphene nanoribbon device

	Room-temperature giant magnetoresistance over one billion percent in a bare graphene nanoribbon device
	Qin, R; Lu, J; Lai, L; Zhou, J; Li, H; Liu, QH; Luo, GF; Zhao, LN; Gao, ZX; Mei, WN
刊名	PHYSICAL REVIEW B
	2010
卷号	81 期号:23 页码:233403
通讯作者	[Qin, Rui ; Lu, Jing ; Lai, Lin ; Zhou, Jing ; Li, Hong ; Liu, Qihang ; Luo, Guangfu ; Gao, Zhengxiang] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China ; [Qin, Rui ; Lu, Jing ; Lai, Lin ; Zhou, Jing ; Li, Hong ; Liu, Qihang ; Luo, Guangfu ; Gao, Zhengxiang] Peking Univ, Dept Phys, Beijing 100871, Peoples R China ; [Luo, Guangfu ; Mei, Wai Ning] Univ Nebraska, Dept Phys, Omaha, NE 68182 USA ; [Zhao, Lina] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Li, Guangping] SUNY Coll Oneonta, SICAS Ctr, Oneonta, NY 13820 USA
英文摘要	We provide ab initio study on a spin valve device that is based on bare ferromagnetic zigzag-edged graphene nanoribbons. Giant magnetoresistance over one billion percent at room temperature is obtained, which is an ultrahigh magnetoresistance among graphene-related spin valve devices and seven orders of magnitude larger than the available experimental values. The orbital parity mismatching between the sigma and pi* bands and enhanced exchange splitting due to the dangling bond are two indispensable factors to generate this large magnetoresistance.
学科主题	Physics
类目[WOS]	Physics, Condensed Matter
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000278724400001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/241044]
专题	高能物理研究所_多学科研究中心高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Qin, R,Lu, J,Lai, L,et al. Room-temperature giant magnetoresistance over one billion percent in a bare graphene nanoribbon device[J]. PHYSICAL REVIEW B,2010,81(23):233403.
APA	Qin, R.,Lu, J.,Lai, L.,Zhou, J.,Li, H.,...&赵丽娜.(2010).Room-temperature giant magnetoresistance over one billion percent in a bare graphene nanoribbon device.PHYSICAL REVIEW B,81(23),233403.
MLA	Qin, R,et al."Room-temperature giant magnetoresistance over one billion percent in a bare graphene nanoribbon device".PHYSICAL REVIEW B 81.23(2010):233403.