Birefringence-Directed Raman Selection Rules in 2D Black Phosphorus   Crystals

doi:10.1002/smll.201600295

CORC > 北京大学 > 信息科学技术学院

	Birefringence-Directed Raman Selection Rules in 2D Black Phosphorus Crystals
	Mao, Nannan ; Wu, Juanxia ; Han, Bowen ; Lin, Jingjing ; Tong, Lianming ; Zhang, Jin
刊名	SMALL
	2016
关键词	FEW-LAYER CRYSTALLOGRAPHIC ORIENTATION SPECTROSCOPY SCATTERING DEPENDENCE GRAPHENE DEPOLARIZATION REFLECTION ANISOTROPY
DOI	10.1002/smll.201600295
英文摘要	The incident and scattered light engaged in the Raman scattering process of low symmetry crystals always suffer from the birefringence-induced depolarization. Therefore, for anisotropic crystals, the classical Raman selection rules should be corrected by taking the birefringence effect into consideration. The appearance of the 2D anisotropic materials provides an excellent platform to explore the birefringence-directed Raman selection rules, due to its controllable thickness at the nanoscale that greatly simplifies the situation comparing with bulk materials. Herein, a theoretical and experimental investigation on the birefringence-directed Raman selection rules in the anisotropic black phosphorus (BP) crystals is presented. The abnormal angle-dependent polarized Raman scattering of the A(g) modes in thin BP crystal, which deviates from the normal Raman selection rules, is successfully interpreted by the theoretical model based on birefringence. It is further confirmed by the examination of different Raman modes using different laser lines and BP samples of different thicknesses.; NSFC [21233001, 21129001, 51272006, 51432002, 51121091, 11374355, 21573004]; MOST [2011YQ0301240201, 2011CB932601]; China Postdoctoral Science Foundation [2015M580010]; SCI(E); ARTICLE; tonglm@pku.edu.cn; jinzhang@pku.edu.cn; 19; 2627-2633; 12
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/492304]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Mao, Nannan,Wu, Juanxia,Han, Bowen,et al. Birefringence-Directed Raman Selection Rules in 2D Black Phosphorus Crystals[J]. SMALL,2016.
APA	Mao, Nannan,Wu, Juanxia,Han, Bowen,Lin, Jingjing,Tong, Lianming,&Zhang, Jin.(2016).Birefringence-Directed Raman Selection Rules in 2D Black Phosphorus Crystals.SMALL.
MLA	Mao, Nannan,et al."Birefringence-Directed Raman Selection Rules in 2D Black Phosphorus Crystals".SMALL (2016).