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Title: Second-harmonic generation in quaternary atomically thin layered AgInP2S6 crystals
Authors: Wang, Xingzhi
Du, Kezhao
Liu, Weiwei
Hu, Peng
Lu, Xin
Xu, Weigao
Kloc, Christian
Xiong, Qihua
Keywords: Science::Physics
Issue Date: 2016
Source: Wang, X., Du, K., Liu, W., Hu, P., Lu, X., Xu, W., . . . Xiong, Q. (2016). Second-harmonic generation in quaternary atomically thin layered AgInP2S6 crystals. Applied Physics Letters, 109(12), 123103-. doi:10.1063/1.4962956
Journal: Applied Physics Letters
Abstract: Nonlinear effects in two-dimensional (2D) atomic layered materials have attracted increasing interest. Here, we report the observation of optical second-harmonic generation (SHG) in two-dimensional atomically thin silver indium phosphorus sulfide (AgInP2S6) crystals, with odd layer thickness. The nonlinear signal facilitates the use of thickness-dependent SHG intensity to investigate the stacking type of this material, while the crystal-orientation dependent SHG intensity of the monolayer sample reveals the rotational symmetry of the AgInP2S6 lattice in plane. Our studies expand the 2D crystal family in nonlinear effect field, which opened considerable promise to the functionalities and potential applications of 2D materials.
ISSN: 0003-6951
DOI: 10.1063/1.4962956
Rights: © 2016 Author(s). All rights reserved. This paper was published by AIP Publishing in Applied Physics Letters and is made available with permission of Author(s).
Fulltext Permission: open
Fulltext Availability: With Fulltext
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