Author
Listed:
- Sefaattin Tongay
(State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences
University of California)
- Hasan Sahin
(University of Antwerp)
- Changhyun Ko
(University of California)
- Alex Luce
(University of California)
- Wen Fan
(University of California
University of Science and Technology of China)
- Kai Liu
(University of California)
- Jian Zhou
(State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences
University of California)
- Ying-Sheng Huang
(National Taiwan University of Science and Technology)
- Ching-Hwa Ho
(National Taiwan University of Science and Technology)
- Jinyuan Yan
(Advanced Light Source, Lawrence Berkeley National Laboratory)
- D. Frank Ogletree
(Molecular Foundry, Lawrence Berkeley National Laboratory)
- Shaul Aloni
(Molecular Foundry, Lawrence Berkeley National Laboratory)
- Jie Ji
(University of Science and Technology of China)
- Shushen Li
(State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences)
- Jingbo Li
(State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences)
- F. M. Peeters
(University of Antwerp)
- Junqiao Wu
(State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences
University of California
Lawrence Berkeley National Laboratory)
Abstract
Semiconducting transition metal dichalcogenides consist of monolayers held together by weak forces where the layers are electronically and vibrationally coupled. Isolated monolayers show changes in electronic structure and lattice vibration energies, including a transition from indirect to direct bandgap. Here we present a new member of the family, rhenium disulphide (ReS2), where such variation is absent and bulk behaves as electronically and vibrationally decoupled monolayers stacked together. From bulk to monolayers, ReS2 remains direct bandgap and its Raman spectrum shows no dependence on the number of layers. Interlayer decoupling is further demonstrated by the insensitivity of the optical absorption and Raman spectrum to interlayer distance modulated by hydrostatic pressure. Theoretical calculations attribute the decoupling to Peierls distortion of the 1T structure of ReS2, which prevents ordered stacking and minimizes the interlayer overlap of wavefunctions. Such vanishing interlayer coupling enables probing of two-dimensional-like systems without the need for monolayers.
Suggested Citation
Sefaattin Tongay & Hasan Sahin & Changhyun Ko & Alex Luce & Wen Fan & Kai Liu & Jian Zhou & Ying-Sheng Huang & Ching-Hwa Ho & Jinyuan Yan & D. Frank Ogletree & Shaul Aloni & Jie Ji & Shushen Li & Jing, 2014.
"Monolayer behaviour in bulk ReS2 due to electronic and vibrational decoupling,"
Nature Communications, Nature, vol. 5(1), pages 1-6, May.
Handle:
RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4252
DOI: 10.1038/ncomms4252
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Cited by:
- Georgy A. Ermolaev & Kirill V. Voronin & Adilet N. Toksumakov & Dmitriy V. Grudinin & Ilia M. Fradkin & Arslan Mazitov & Aleksandr S. Slavich & Mikhail K. Tatmyshevskiy & Dmitry I. Yakubovsky & Valent, 2024.
"Wandering principal optical axes in van der Waals triclinic materials,"
Nature Communications, Nature, vol. 15(1), pages 1-8, December.
- Álvaro Jiménez-Galán & Chandler Bossaer & Guilmot Ernotte & Andrew M. Parks & Rui E. F. Silva & David M. Villeneuve & André Staudte & Thomas Brabec & Adina Luican-Mayer & Giulio Vampa, 2023.
"Orbital perspective on high-harmonic generation from solids,"
Nature Communications, Nature, vol. 14(1), pages 1-6, December.
- Ruijin Sun & Jun Deng & Xiaowei Wu & Munan Hao & Ke Ma & Yuxin Ma & Changchun Zhao & Dezhong Meng & Xiaoyu Ji & Yiyang Ding & Yu Pang & Xin Qian & Ronggui Yang & Guodong Li & Zhilin Li & Linjie Dai & , 2023.
"High anisotropy in electrical and thermal conductivity through the design of aerogel-like superlattice (NaOH)0.5NbSe2,"
Nature Communications, Nature, vol. 14(1), pages 1-10, December.
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