Tunable Magneto-Optical Kerr Effect in Gated Monolayer Graphene in Terahertz Region

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	Tunable Magneto-Optical Kerr Effect in Gated Monolayer Graphene in Terahertz Region
	Zhou, YX ; Xu, XL ; Fan, HM ; Ren, ZY ; Chen, XM ; Bai, JT
刊名	JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
	2013
卷号	82 期号:7
关键词	graphene magneto-optical Kerr effect terahertz quantum Hall effect modulator
ISSN号	0031-9015
通讯作者	Zhou, YX (reprint author), NW Univ Xian, State Key Lab Incubat Base Photoelect Technol & F, Natl Photoelect Technol Funct Mat & Applicat Sci, Nanobiophoton Ctr, Xian 710069, Peoples R China.
中文摘要	Magneto-optical Kerr effect (MOKE) as a simple but powerful method can be used for probing physical properties from quantum effects to classical magnetoplasmonics. Here, we study voltage-dependent MOKE for terahertz (THz) applications in graphene. The results suggest that in quantum regime the reflectivity spectrum mainly carry the real part of the diagonal conductivity information, while Kerr rotation spectrum carry the real part of Hall conductivity information without Fabry-Perot (FP) interferences. FP from substrates can bring apparent shape change and different informations for the interband transitions originating from the phase change, while no evident change for intraband transitions. In classic regime, the giant magnetoplasmons effect of graphene and the synergetic effect of magnetic and electric modulation can result in broad-band manipulation. It also suggests that high carrier density but limited magnetic field is needed for maximum Kerr rotation. Our results reveal potential THz applications with gated graphene based on MOKE.
资助信息	National Natural Science Foundation of China [61275105, 10974152, 21006079]; Natural Science Basic Research Plan in Shaanxi Province of China [2012KJXX-27]; Ph. D. Programs Foundation of Ministry of Education of China [20106101110017]; open foundation of State Key Lab Incubation Base of Photoelectric Technology and Functional Materials [ZS12018]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57630]
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	Zhou, YX,Xu, XL,Fan, HM,et al. Tunable Magneto-Optical Kerr Effect in Gated Monolayer Graphene in Terahertz Region[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN,2013,82(7).
APA	Zhou, YX,Xu, XL,Fan, HM,Ren, ZY,Chen, XM,&Bai, JT.(2013).Tunable Magneto-Optical Kerr Effect in Gated Monolayer Graphene in Terahertz Region.JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN,82(7).
MLA	Zhou, YX,et al."Tunable Magneto-Optical Kerr Effect in Gated Monolayer Graphene in Terahertz Region".JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 82.7(2013).