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Title: Polar coupling enabled nonlinear optical filtering at MoS2/ferroelectric heterointerfaces

Abstract

Complex oxide heterointerfaces and van der Waals heterostructures present two versatile but intrinsically different platforms for exploring emergent quantum phenomena and designing new functionalities. The rich opportunity offered by the synergy between these two classes of materials, however, is yet to be charted. Here, we report an unconventional nonlinear optical filtering effect resulting from the interfacial polar alignment between monolayer MoS2 and a neighboring ferroelectric oxide thin film. The second harmonic generation response at the heterointerface is either substantially enhanced or almost entirely quenched by an underlying ferroelectric domain wall depending on its chirality, and can be further tailored by the polar domains. Unlike the extensively studied coupling mechanisms driven by charge, spin, and lattice, the interfacial tailoring effect is solely mediated by the polar symmetry, as well explained via our density functional theory calculations, pointing to a new material strategy for the functional design of nanoscale reconfigurable optical applications.

Authors:
ORCiD logo; ; ORCiD logo; ORCiD logo; ; ; ; ; ORCiD logo; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR); Nebraska Research Initiative
OSTI Identifier:
1619557
Alternate Identifier(s):
OSTI ID: 1624258
Grant/Contract Number:  
SC0016153; DMR-1420645; CMMI 1826392; N00014-15-C-0087; ECCS: 1542182
Resource Type:
Published Article
Journal Name:
Nature Communications
Additional Journal Information:
Journal Name: Nature Communications Journal Volume: 11 Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United Kingdom
Language:
English
Subject:
36 MATERIALS SCIENCE; science & technology - other topics; ferroelectrics and multiferroics; nonlinear optics; surfaces, interfaces and thin films; two-dimensional materials

Citation Formats

Li, Dawei, Huang, Xi, Xiao, Zhiyong, Chen, Hanying, Zhang, Le, Hao, Yifei, Song, Jingfeng, Shao, Ding-Fu, Tsymbal, Evgeny Y., Lu, Yongfeng, and Hong, Xia. Polar coupling enabled nonlinear optical filtering at MoS2/ferroelectric heterointerfaces. United Kingdom: N. p., 2020. Web. https://doi.org/10.1038/s41467-020-15191-2.
Li, Dawei, Huang, Xi, Xiao, Zhiyong, Chen, Hanying, Zhang, Le, Hao, Yifei, Song, Jingfeng, Shao, Ding-Fu, Tsymbal, Evgeny Y., Lu, Yongfeng, & Hong, Xia. Polar coupling enabled nonlinear optical filtering at MoS2/ferroelectric heterointerfaces. United Kingdom. https://doi.org/10.1038/s41467-020-15191-2
Li, Dawei, Huang, Xi, Xiao, Zhiyong, Chen, Hanying, Zhang, Le, Hao, Yifei, Song, Jingfeng, Shao, Ding-Fu, Tsymbal, Evgeny Y., Lu, Yongfeng, and Hong, Xia. Tue . "Polar coupling enabled nonlinear optical filtering at MoS2/ferroelectric heterointerfaces". United Kingdom. https://doi.org/10.1038/s41467-020-15191-2.
@article{osti_1619557,
title = {Polar coupling enabled nonlinear optical filtering at MoS2/ferroelectric heterointerfaces},
author = {Li, Dawei and Huang, Xi and Xiao, Zhiyong and Chen, Hanying and Zhang, Le and Hao, Yifei and Song, Jingfeng and Shao, Ding-Fu and Tsymbal, Evgeny Y. and Lu, Yongfeng and Hong, Xia},
abstractNote = {Complex oxide heterointerfaces and van der Waals heterostructures present two versatile but intrinsically different platforms for exploring emergent quantum phenomena and designing new functionalities. The rich opportunity offered by the synergy between these two classes of materials, however, is yet to be charted. Here, we report an unconventional nonlinear optical filtering effect resulting from the interfacial polar alignment between monolayer MoS2 and a neighboring ferroelectric oxide thin film. The second harmonic generation response at the heterointerface is either substantially enhanced or almost entirely quenched by an underlying ferroelectric domain wall depending on its chirality, and can be further tailored by the polar domains. Unlike the extensively studied coupling mechanisms driven by charge, spin, and lattice, the interfacial tailoring effect is solely mediated by the polar symmetry, as well explained via our density functional theory calculations, pointing to a new material strategy for the functional design of nanoscale reconfigurable optical applications.},
doi = {10.1038/s41467-020-15191-2},
journal = {Nature Communications},
number = 1,
volume = 11,
place = {United Kingdom},
year = {2020},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1038/s41467-020-15191-2

Figures / Tables:

Fig. 1 Fig. 1: Characterization of 1L MoS2/PZT heterostructures. a Schematic of the SHG experimental set-up. The laboratory coordinate system is shown as inset. b Raman spectrum of a 1L MoS2 flake on gel film showing E$^{1}_{2g}$ mode at 384.0 cm −1 and A1g mode at 403.9 cm −1. c, d PFMmore » phase images of c square domains written on a PZT film and d the same region with a 1L MoS2 transferred on top. Inset: Crystalline orientation of PZT. The scale bars are 3 μm. e Room temperature PL spectra of the 1L MoS2 on the Pup and Pdown domains shown in d. The domain region is outlined in the optical image of the sample (inset). The scale bar is 10 μm. f PL mapping of the peak intensity (upper), width (middle), and position (lower) on a 1L MoS2/PZT sample in a region with both Pup and Pdown domains. The dotted lines mark the DW positions. The scale bars are 2 μm.« less

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.