Low-Frequency Interlayer Raman Modes to Probe Interface of Twisted Bilayer MoS 2
Abstract
A variety of van der Waals homo- and hetero- structures assembled by stamping monolayers together present optoelectronic properties suitable for diverse applications. Understanding the details of the interlayer stacking and resulting coupling is crucial for tuning these properties. Twisted bilayer transition metal dichalcogenides offer a great platform for developing a precise understanding of the structure/property relationship. Here, we study the low-frequency interlayer shear and breathing Raman modes (<50 cm-1) in twisted bilayer MoS2 by Raman spectroscopy and first-principles modeling. Twisting introduces both rotational and translational shifts and significantly alters the interlayer stacking and coupling, leading to notable frequency and intensity changes of low-frequency modes. The frequency variation can be up to 8 cm-1 and the intensity can vary by a factor of ~5 for twisting near 0 and 60 , where the stacking is a mixture of multiple high-symmetry stacking patterns and is thus especially sensitive to twisting. Moreover, for twisting angles between 20 and 40 , the interlayer coupling is nearly constant since the stacking results in mismatched lattices over the entire sample. It follows that the Raman signature is relatively uniform. Interestingly, unlike the breathing mode, the shear mode is extremely sensitive to twisting: it disappears between 20more »
- Authors:
-
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Rensselaer Polytechnic Inst., Troy, NY (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Rensselaer Polytechnic Inst., Troy, NY (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1257898
- Grant/Contract Number:
- AC05-00OR22725; SC0001299; FG02-09ER46577
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nano Letters
- Additional Journal Information:
- Journal Volume: 16; Journal Issue: 2; Journal ID: ISSN 1530-6984
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Huang, Shengxi, Liang, Liangbo, Ling, Xi, Puretzky, Alexander A., Geohegan, David B., Sumpter, Bobby G., Kong, Jing, Meunier, Vincent, and Dresselhaus, Mildred S.. Low-Frequency Interlayer Raman Modes to Probe Interface of Twisted Bilayer MoS 2. United States: N. p., 2016.
Web. doi:10.1021/acs.nanolett.5b05015.
Huang, Shengxi, Liang, Liangbo, Ling, Xi, Puretzky, Alexander A., Geohegan, David B., Sumpter, Bobby G., Kong, Jing, Meunier, Vincent, & Dresselhaus, Mildred S.. Low-Frequency Interlayer Raman Modes to Probe Interface of Twisted Bilayer MoS 2. United States. https://doi.org/10.1021/acs.nanolett.5b05015
Huang, Shengxi, Liang, Liangbo, Ling, Xi, Puretzky, Alexander A., Geohegan, David B., Sumpter, Bobby G., Kong, Jing, Meunier, Vincent, and Dresselhaus, Mildred S.. Sun .
"Low-Frequency Interlayer Raman Modes to Probe Interface of Twisted Bilayer MoS 2". United States. https://doi.org/10.1021/acs.nanolett.5b05015. https://www.osti.gov/servlets/purl/1257898.
@article{osti_1257898,
title = {Low-Frequency Interlayer Raman Modes to Probe Interface of Twisted Bilayer MoS 2},
author = {Huang, Shengxi and Liang, Liangbo and Ling, Xi and Puretzky, Alexander A. and Geohegan, David B. and Sumpter, Bobby G. and Kong, Jing and Meunier, Vincent and Dresselhaus, Mildred S.},
abstractNote = {A variety of van der Waals homo- and hetero- structures assembled by stamping monolayers together present optoelectronic properties suitable for diverse applications. Understanding the details of the interlayer stacking and resulting coupling is crucial for tuning these properties. Twisted bilayer transition metal dichalcogenides offer a great platform for developing a precise understanding of the structure/property relationship. Here, we study the low-frequency interlayer shear and breathing Raman modes (<50 cm-1) in twisted bilayer MoS2 by Raman spectroscopy and first-principles modeling. Twisting introduces both rotational and translational shifts and significantly alters the interlayer stacking and coupling, leading to notable frequency and intensity changes of low-frequency modes. The frequency variation can be up to 8 cm-1 and the intensity can vary by a factor of ~5 for twisting near 0 and 60 , where the stacking is a mixture of multiple high-symmetry stacking patterns and is thus especially sensitive to twisting. Moreover, for twisting angles between 20 and 40 , the interlayer coupling is nearly constant since the stacking results in mismatched lattices over the entire sample. It follows that the Raman signature is relatively uniform. Interestingly, unlike the breathing mode, the shear mode is extremely sensitive to twisting: it disappears between 20 and 40 as its frequency drops to almost zero due to the stacking-induced mismatch. Note that for some samples, multiple breathing mode peaks appear, indicating non-uniform coupling across the interface. In contrast to the low-frequency interlayer modes, high-frequency intralayer Raman modes are much less sensitive to interlayer stacking and coupling, showing negligible changes upon twisting. Our research demonstrates the effectiveness of low-frequency Raman modes for probing the interfacial coupling and environment of twisted bilayer MoS2, and potentially other two-dimensional materials and heterostructures.},
doi = {10.1021/acs.nanolett.5b05015},
journal = {Nano Letters},
number = 2,
volume = 16,
place = {United States},
year = {Sun Feb 21 00:00:00 EST 2016},
month = {Sun Feb 21 00:00:00 EST 2016}
}
Web of Science
Works referenced in this record:
Atomically Thin A New Direct-Gap Semiconductor
journal, September 2010
- Mak, Kin Fai; Lee, Changgu; Hone, James
- Physical Review Letters, Vol. 105, Issue 13, Article No.136805
Emerging Photoluminescence in Monolayer MoS2
journal, April 2010
- Splendiani, Andrea; Sun, Liang; Zhang, Yuanbo
- Nano Letters, Vol. 10, Issue 4, p. 1271-1275
Photoluminescence of freestanding single- and few-layer
journal, March 2014
- Scheuschner, Nils; Ochedowski, Oliver; Kaulitz, Anne-Marie
- Physical Review B, Vol. 89, Issue 12
Photoluminescence from Chemically Exfoliated MoS2
journal, December 2011
- Eda, Goki; Yamaguchi, Hisato; Voiry, Damien
- Nano Letters, Vol. 11, Issue 12, p. 5111-5116
Ultrasensitive photodetectors based on monolayer MoS2
journal, June 2013
- Lopez-Sanchez, Oriol; Lembke, Dominik; Kayci, Metin
- Nature Nanotechnology, Vol. 8, Issue 7
Single-Layer MoS2 Phototransistors
journal, December 2011
- Yin, Zongyou; Li, Hai; Li, Hong
- ACS Nano, Vol. 6, Issue 1, p. 74-80
Many-Body Effects in Valleytronics: Direct Measurement of Valley Lifetimes in Single-Layer MoS 2
journal, December 2013
- Mai, Cong; Barrette, Andrew; Yu, Yifei
- Nano Letters, Vol. 14, Issue 1
Valley polarization in MoS2 monolayers by optical pumping
journal, June 2012
- Zeng, Hualing; Dai, Junfeng; Yao, Wang
- Nature Nanotechnology, Vol. 7, Issue 8
Coupled Spin and Valley Physics in Monolayers of and Other Group-VI Dichalcogenides
journal, May 2012
- Xiao, Di; Liu, Gui-Bin; Feng, Wanxiang
- Physical Review Letters, Vol. 108, Issue 19
Probing the Interlayer Coupling of Twisted Bilayer MoS 2 Using Photoluminescence Spectroscopy
journal, September 2014
- Huang, Shengxi; Ling, Xi; Liang, Liangbo
- Nano Letters, Vol. 14, Issue 10
Direct Measurement of the Thickness-Dependent Electronic Band Structure of Using Angle-Resolved Photoemission Spectroscopy
journal, September 2013
- Jin, Wencan; Yeh, Po-Chun; Zaki, Nader
- Physical Review Letters, Vol. 111, Issue 10
Quasiparticle band structure calculation of monolayer, bilayer, and bulk MoS
journal, May 2012
- Cheiwchanchamnangij, Tawinan; Lambrecht, Walter R. L.
- Physical Review B, Vol. 85, Issue 20
Monolayer MoS : Trigonal warping, the valley, and spin-orbit coupling effects
journal, July 2013
- Kormányos, Andor; Zólyomi, Viktor; Drummond, Neil D.
- Physical Review B, Vol. 88, Issue 4
Valley and band structure engineering of folded MoS2 bilayers
journal, August 2014
- Jiang, Tao; Liu, Hengrui; Huang, Di
- Nature Nanotechnology, Vol. 9, Issue 10
Integrated Circuits Based on Bilayer MoS2 Transistors
journal, January 2012
- Wang, Han; Yu, Lili; Lee, Yi-Hsien
- Nano Letters, Vol. 12, Issue 9, p. 4674-4680
The valley Hall effect in MoS2 transistors
journal, June 2014
- Mak, K. F.; McGill, K. L.; Park, J.
- Science, Vol. 344, Issue 6191
Electrical tuning of valley magnetic moment through symmetry control in bilayer MoS2
journal, January 2013
- Wu, Sanfeng; Ross, Jason S.; Liu, Gui-Bin
- Nature Physics, Vol. 9, Issue 3
Tailoring the Electronic Structure in Bilayer Molybdenum Disulfide via Interlayer Twist
journal, June 2014
- van der Zande, Arend M.; Kunstmann, Jens; Chernikov, Alexey
- Nano Letters, Vol. 14, Issue 7
Evolution of interlayer coupling in twisted molybdenum disulfide bilayers
journal, September 2014
- Liu, Kaihui; Zhang, Liming; Cao, Ting
- Nature Communications, Vol. 5, Issue 1
From Bulk to Monolayer MoS2: Evolution of Raman Scattering
journal, January 2012
- Li, Hong; Zhang, Qing; Yap, Chin Chong Ray
- Advanced Functional Materials, Vol. 22, Issue 7
Anomalous Lattice Vibrations of Single- and Few-Layer MoS 2
journal, March 2010
- Lee, Changgu; Yan, Hugen; Brus, Louis E.
- ACS Nano, Vol. 4, Issue 5
Local Strain Engineering in Atomically Thin MoS 2
journal, October 2013
- Castellanos-Gomez, Andres; Roldán, Rafael; Cappelluti, Emmanuele
- Nano Letters, Vol. 13, Issue 11
Bandgap Engineering of Strained Monolayer and Bilayer MoS2
journal, July 2013
- Conley, Hiram J.; Wang, Bin; Ziegler, Jed I.
- Nano Letters, Vol. 13, Issue 8, p. 3626-3630
Selective Decoration of Au Nanoparticles on Monolayer MoS2 Single Crystals
journal, May 2013
- Shi, Yumeng; Huang, Jing-Kai; Jin, Limin
- Scientific Reports, Vol. 3, Issue 1
Interlayer Breathing and Shear Modes in Few-Trilayer MoS 2 and WSe 2
journal, February 2013
- Zhao, Yanyuan; Luo, Xin; Li, Hai
- Nano Letters, Vol. 13, Issue 3
Raman spectroscopy of shear and layer breathing modes in multilayer MoS
journal, March 2013
- Zhang, X.; Han, W. P.; Wu, J. B.
- Physical Review B, Vol. 87, Issue 11
The shear mode of multilayer graphene
journal, February 2012
- Tan, P. H.; Han, W. P.; Zhao, W. J.
- Nature Materials, Vol. 11, Issue 4
Measurement of layer breathing mode vibrations in few-layer graphene
journal, March 2013
- Lui, Chun Hung; Heinz, Tony F.
- Physical Review B, Vol. 87, Issue 12
Phonon and Raman scattering of two-dimensional transition metal dichalcogenides from monolayer, multilayer to bulk material
journal, January 2015
- Zhang, Xin; Qiao, Xiao-Fen; Shi, Wei
- Chemical Society Reviews, Vol. 44, Issue 9
Low-Frequency Interlayer Breathing Modes in Few-Layer Black Phosphorus
journal, May 2015
- Ling, Xi; Liang, Liangbo; Huang, Shengxi
- Nano Letters, Vol. 15, Issue 6
Large Frequency Change with Thickness in Interlayer Breathing Mode—Significant Interlayer Interactions in Few Layer Black Phosphorus
journal, May 2015
- Luo, Xin; Lu, Xin; Koon, Gavin Kok Wai
- Nano Letters, Vol. 15, Issue 6
Coupling and Stacking Order of ReS 2 Atomic Layers Revealed by Ultralow-Frequency Raman Spectroscopy
journal, January 2016
- He, Rui; Yan, Jia-An; Yin, Zongyou
- Nano Letters, Vol. 16, Issue 2
Interlayer interactions in anisotropic atomically thin rhenium diselenide
journal, October 2015
- Zhao, Huan; Wu, Jiangbin; Zhong, Hongxia
- Nano Research, Vol. 8, Issue 11
Resonant Raman spectroscopy of twisted multilayer graphene
journal, November 2014
- Wu, Jiang-Bin; Zhang, Xin; Ijäs, Mari
- Nature Communications, Vol. 5, Issue 1
Enhanced ultra-low-frequency interlayer shear modes in folded graphene layers
journal, August 2014
- Cong, Chunxiao; Yu, Ting
- Nature Communications, Vol. 5, Issue 1
Interface Coupling in Twisted Multilayer Graphene by Resonant Raman Spectroscopy of Layer Breathing Modes
journal, June 2015
- Wu, Jiang-Bin; Hu, Zhi-Xin; Zhang, Xin
- ACS Nano, Vol. 9, Issue 7
Low-Frequency Raman Fingerprints of Two-Dimensional Metal Dichalcogenide Layer Stacking Configurations
journal, May 2015
- Puretzky, Alexander A.; Liang, Liangbo; Li, Xufan
- ACS Nano, Vol. 9, Issue 6
Rapid and Nondestructive Identification of Polytypism and Stacking Sequences in Few-Layer Molybdenum Diselenide by Raman Spectroscopy
journal, July 2015
- Lu, Xin; Utama, M. Iqbal Bakti; Lin, Junhao
- Advanced Materials, Vol. 27, Issue 30
Stacking sequence determines Raman intensities of observed interlayer shear modes in 2D layered materials – A general bond polarizability model
journal, October 2015
- Luo, Xin; Lu, Xin; Cong, Chunxiao
- Scientific Reports, Vol. 5, Issue 1
Observation of interlayer phonon modes in van der Waals heterostructures
journal, April 2015
- Lui, C. H.; Ye, Zhipeng; Ji, Chao
- Physical Review B, Vol. 91, Issue 16
Ultrafast charge transfer in atomically thin MoS2/WS2 heterostructures
journal, August 2014
- Hong, Xiaoping; Kim, Jonghwan; Shi, Su-Fei
- Nature Nanotechnology, Vol. 9, Issue 9
Atomically thin p–n junctions with van der Waals heterointerfaces
journal, August 2014
- Lee, Chul-Ho; Lee, Gwan-Hyoung; van der Zande, Arend M.
- Nature Nanotechnology, Vol. 9, Issue 9
Ultrafast Charge Separation and Indirect Exciton Formation in a MoS 2 –MoSe 2 van der Waals Heterostructure
journal, November 2014
- Ceballos, Frank; Bellus, Matthew Z.; Chiu, Hsin-Ying
- ACS Nano, Vol. 8, Issue 12
Pronounced Photovoltaic Response from Multilayered Transition-Metal Dichalcogenides PN-Junctions
journal, October 2015
- Memaran, Shahriar; Pradhan, Nihar R.; Lu, Zhengguang
- Nano Letters, Vol. 15, Issue 11
New First Order Raman-active Modes in Few Layered Transition Metal Dichalcogenides
journal, February 2014
- Terrones, H.; Corro, E. Del; Feng, S.
- Scientific Reports, Vol. 4, Issue 1
Recent Advances in Two-Dimensional Materials beyond Graphene
journal, October 2015
- Bhimanapati, Ganesh R.; Lin, Zhong; Meunier, Vincent
- ACS Nano, Vol. 9, Issue 12
Raman Spectroscopy Study of Lattice Vibration and Crystallographic Orientation of Monolayer MoS 2 under Uniaxial Strain
journal, April 2013
- Wang, Yanlong; Cong, Chunxiao; Qiu, Caiyu
- Small, Vol. 9, Issue 17
Raman-scattering measurements and first-principles calculations of strain-induced phonon shifts in monolayer MoS
journal, February 2013
- Rice, C.; Young, R. J.; Zan, R.
- Physical Review B, Vol. 87, Issue 8
Exceptional Tunability of Band Energy in a Compressively Strained Trilayer MoS 2 Sheet
journal, July 2013
- Hui, Yeung Yu; Liu, Xiaofei; Jie, Wenjing
- ACS Nano, Vol. 7, Issue 8
Stacking effects on the electronic and optical properties of bilayer transition metal dichalcogenides , , , and
journal, February 2014
- He, Jiangang; Hummer, Kerstin; Franchini, Cesare
- Physical Review B, Vol. 89, Issue 7
Interlayer Electronic Coupling in Arbitrarily Stacked MoS 2 Bilayers Controlled by Interlayer S–S Interaction
journal, December 2014
- Cao, Boxiao; Li, Tianshu
- The Journal of Physical Chemistry C, Vol. 119, Issue 2
First-principles Raman spectra of MoS2, WS2 and their heterostructures
journal, January 2014
- Liang, Liangbo; Meunier, Vincent
- Nanoscale, Vol. 6, Issue 10
Role of the Seeding Promoter in MoS 2 Growth by Chemical Vapor Deposition
journal, January 2014
- Ling, Xi; Lee, Yi-Hsien; Lin, Yuxuan
- Nano Letters, Vol. 14, Issue 2
Grains and grain boundaries in highly crystalline monolayer molybdenum disulphide
journal, May 2013
- van der Zande, Arend M.; Huang, Pinshane Y.; Chenet, Daniel A.
- Nature Materials, Vol. 12, Issue 6, p. 554-561
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
journal, July 1996
- Kresse, G.; Furthmüller, J.
- Computational Materials Science, Vol. 6, Issue 1, p. 15-50
Special points for Brillouin-zone integrations
journal, June 1976
- Monkhorst, Hendrik J.; Pack, James D.
- Physical Review B, Vol. 13, Issue 12, p. 5188-5192
First-Principles Determination of the Soft Mode in Cubic
journal, May 1997
- Parlinski, K.; Li, Z. Q.; Kawazoe, Y.
- Physical Review Letters, Vol. 78, Issue 21
Works referencing / citing this record:
Raman spectroscopy of graphene-based materials and its applications in related devices
journal, January 2018
- Wu, Jiang-Bin; Lin, Miao-Ling; Cong, Xin
- Chemical Society Reviews, Vol. 47, Issue 5
Environmental engineering of transition metal dichalcogenide optoelectronics
journal, June 2018
- LaMountain, Trevor; Lenferink, Erik J.; Chen, Yen-Jung
- Frontiers of Physics, Vol. 13, Issue 4
Moiré-templated strain patterning in transition-metal dichalcogenides and application in twisted bilayer MoS 2
journal, January 2018
- Zhu, Shuze; Johnson, Harley T.
- Nanoscale, Vol. 10, Issue 44
Controllable growth and electrostatic properties of Bernal stacked bilayer MoS 2
journal, September 2016
- Hao, Song; Yang, Bingchu; Gao, Yongli
- Journal of Applied Physics, Vol. 120, Issue 12
Suppression of the shear Raman mode in defective bilayer MoS 2
journal, February 2019
- Maguire, Pierce; Downing, Clive; Jadwiszczak, Jakub
- Journal of Applied Physics, Vol. 125, Issue 6
Raman spectroscopy of transition metal dichalcogenides
journal, July 2016
- Saito, R.; Tatsumi, Y.; Huang, S.
- Journal of Physics: Condensed Matter, Vol. 28, Issue 35
Cross-dimensional electron-phonon coupling in van der Waals heterostructures
journal, June 2019
- Lin, Miao-Ling; Zhou, Yu; Wu, Jiang-Bin
- Nature Communications, Vol. 10, Issue 1
Weakened interlayer coupling in two-dimensional MoSe2 flakes with screw dislocations
journal, June 2019
- Wang, Xiangzhuo; Yang, Huixia; Yang, Rong
- Nano Research, Vol. 12, Issue 8
The role of collective motion in the ultrafast charge transfer in van der Waals heterostructures
journal, May 2016
- Wang, Han; Bang, Junhyeok; Sun, Yiyang
- Nature Communications, Vol. 7, Issue 1
Spotting the differences in two-dimensional materials – the Raman scattering perspective
journal, January 2018
- Zhang, Shishu; Zhang, Na; Zhao, Yan
- Chemical Society Reviews, Vol. 47, Issue 9
First principles study and empirical parametrization of twisted bilayer MoS2 based on band-unfolding
journal, September 2016
- Tan, Yaohua; Chen, Fan W.; Ghosh, Avik W.
- Applied Physics Letters, Vol. 109, Issue 10
Interface Characterization and Control of 2D Materials and Heterostructures
journal, July 2018
- Liu, Xiaolong; Hersam, Mark C.
- Advanced Materials, Vol. 30, Issue 39
Stacking-dependent interlayer phonons in 3R and 2H MoS 2
journal, February 2019
- van Baren, Jeremiah; Ye, Gaihua; Yan, Jia-An
- 2D Materials, Vol. 6, Issue 2
Cathodoluminescence enhancement and quenching in type-I van der Waals heterostructures: Cleanliness of the interfaces and defect creation
journal, November 2019
- Nayak, G.; Lisi, S.; Liu, W. L.
- Physical Review Materials, Vol. 3, Issue 11
Interfacial Engineering of Van der Waals Coupled 2D Layered Materials
journal, February 2017
- Hong, Hao; Liu, Can; Cao, Ting
- Advanced Materials Interfaces, Vol. 4, Issue 9
Evolution of inter-layer coupling in artificially stacked bilayer MoS 2
journal, January 2019
- Sarkar, Suman; Pradeepa, H. L.; Nayak, Goutham
- Nanoscale Advances, Vol. 1, Issue 11
Anomalous interlayer vibrations in strongly coupled layered PdSe 2
journal, May 2018
- Puretzky, Alexander A.; Oyedele, Akinola D.; Xiao, Kai
- 2D Materials, Vol. 5, Issue 3
Band engineering in twisted molybdenum disulfide bilayers
journal, April 2018
- Zhao, Yipeng; Liao, Chengwei; Ouyang, Gang
- Journal of Physics D: Applied Physics, Vol. 51, Issue 18
Black Phosphorus: Optical Characterization, Properties and Applications
journal, July 2017
- Huang, Shengxi; Ling, Xi
- Small, Vol. 13, Issue 38
Ultraflatbands and Shear Solitons in Moiré Patterns of Twisted Bilayer Transition Metal Dichalcogenides
journal, December 2018
- Naik, Mit H.; Jain, Manish
- Physical Review Letters, Vol. 121, Issue 26
Dependence of Raman and absorption spectra of stacked bilayer MoS_2 on the stacking orientation
journal, January 2016
- Park, Seki; Kim, Hyun; Kim, Min Su
- Optics Express, Vol. 24, Issue 19
Caveats in obtaining high-quality 2D materials and property characterization
journal, January 2020
- Subramanian, Shruti; Briggs, Natalie; Shallenberger, Jeffrey
- Journal of Materials Research, Vol. 35, Issue 8
Transition metal dichalcogenides bilayer single crystals by reverse-flow chemical vapor epitaxy
journal, February 2019
- Zhang, Xiumei; Nan, Haiyan; Xiao, Shaoqing
- Nature Communications, Vol. 10, Issue 1
Suppression of the Shear Raman Mode in Defective Bilayer MoS2
text, January 2018
- Maguire, Pierce; Downing, Clive; Jadwiszczak, Jakub
- arXiv
The role of collective motion in the ultrafast charge transfer in van der Waals heterostructures
journal, May 2016
- Wang, Han; Bang, Junhyeok; Sun, Yiyang
- Nature Communications, Vol. 7, Issue 1
Strain-shear coupling in bilayer MoS2
journal, November 2017
- Lee, Jae-Ung; Woo, Sungjong; Park, Jaesung
- Nature Communications, Vol. 8, Issue 1