Stacking-Dependent Interlayer Coupling in Trilayer MoS2with Broken Inversion Symmetry

	Stacking-Dependent Interlayer Coupling in Trilayer MoS2with Broken Inversion Symmetry
	Yan, J.; J. Xia; X. Wang; L. Liu; J.-L. Kuo; B. K. Tay; S. Chen; W. Zhou; Z. Liu and Z. X. Shen
	2015
发表期刊	Nano Letters
卷号	15 期号:12
摘要	The stacking configuration in few-layer two-dimensional (2D) materials results in different structural symmetries and layer-to-layer interactions, and hence it provides a very useful parameter for tuning their electronic properties. For example, ABA-stacking trilayer graphene remains semimetallic similar to that of monolayer, while ABC-stacking is predicted to be a tunable band gap semiconductor under an external electric field. Such stacking dependence resulting from many-body interactions has recently been the focus of intense research activities. Here we demonstrate that few-layer MoS2samples grown by chemical vapor deposition with different stacking configurations (AA, AB for bilayer; AAB, ABB, ABA, AAA for trilayer) exhibit distinct coupling phenomena in both photoluminescence and Raman spectra. By means of ultralow-frequency (ULF) Raman spectroscopy, we demonstrate that the evolution of interlayer interaction with various stacking configurations correlates strongly with layer-breathing mode (LBM) vibrations. Our ab initio calculations reveal that the layer-dependent properties arise from both the spin-orbit coupling (SOC) and interlayer coupling in different structural symmetries. Such detailed understanding provides useful guidance for future spintronics fabrication using various stacked few-layer MoS2blocks. 2015 American Chemical Society.
文章类型	期刊
收录类别	EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55913
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Yan, J.,J. Xia,X. Wang,et al. Stacking-Dependent Interlayer Coupling in Trilayer MoS2with Broken Inversion Symmetry[J]. Nano Letters,2015,15(12).
APA	Yan, J..,J. Xia.,X. Wang.,L. Liu.,J.-L. Kuo.,...&Z. Liu and Z. X. Shen.(2015).Stacking-Dependent Interlayer Coupling in Trilayer MoS2with Broken Inversion Symmetry.Nano Letters,15(12).
MLA	Yan, J.,et al."Stacking-Dependent Interlayer Coupling in Trilayer MoS2with Broken Inversion Symmetry".Nano Letters 15.12(2015).

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