High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition
The discovery of monolayer superconductors bears consequences for both fundamental physics and device applications. Currently, the growth of superconducting monolayers can only occur under ultrahigh vacuum and on specific lattice-matched or dangling bond-free substrates, to minimize environment- and...
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| Format: | Journal Article |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/89473 http://hdl.handle.net/10220/44960 |
| _version_ | 1811697199905505280 |
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| author | Wang, Hong Huang, Xiangwei Lin, Junhao Cui, Jian Chen, Yu Zhu, Chao Liu, Fucai Zeng, Qingsheng Zhou, Jiadong Yu, Peng Wang, Xuewen He, Haiyong Tsang, Siu Hon Gao, Weibo Suenaga, Kazu Ma, Fengcai Yang, Changli Lu, Li Yu, Ting Teo, Edwin Hang Tong Liu, Guangtong Liu, Zheng |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Wang, Hong Huang, Xiangwei Lin, Junhao Cui, Jian Chen, Yu Zhu, Chao Liu, Fucai Zeng, Qingsheng Zhou, Jiadong Yu, Peng Wang, Xuewen He, Haiyong Tsang, Siu Hon Gao, Weibo Suenaga, Kazu Ma, Fengcai Yang, Changli Lu, Li Yu, Ting Teo, Edwin Hang Tong Liu, Guangtong Liu, Zheng |
| author_sort | Wang, Hong |
| collection | NTU |
| description | The discovery of monolayer superconductors bears consequences for both fundamental physics and device applications. Currently, the growth of superconducting monolayers can only occur under ultrahigh vacuum and on specific lattice-matched or dangling bond-free substrates, to minimize environment- and substrate-induced disorders/defects. Such severe growth requirements limit the exploration of novel two-dimensional superconductivity and related nanodevices. Here we demonstrate the experimental realization of superconductivity in a chemical vapour deposition grown monolayer material—NbSe2. Atomic-resolution scanning transmission electron microscope imaging reveals the atomic structure of the intrinsic point defects and grain boundaries in monolayer NbSe2, and confirms the low defect concentration in our high-quality film, which is the key to two-dimensional superconductivity. By using monolayer chemical vapour deposited graphene as a protective capping layer, thickness-dependent superconducting properties are observed in as-grown NbSe2 with a transition temperature increasing from 1.0 K in monolayer to 4.56 K in 10-layer. |
| first_indexed | 2024-10-01T07:51:28Z |
| format | Journal Article |
| id | ntu-10356/89473 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:51:28Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/894732023-07-14T15:46:22Z High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition Wang, Hong Huang, Xiangwei Lin, Junhao Cui, Jian Chen, Yu Zhu, Chao Liu, Fucai Zeng, Qingsheng Zhou, Jiadong Yu, Peng Wang, Xuewen He, Haiyong Tsang, Siu Hon Gao, Weibo Suenaga, Kazu Ma, Fengcai Yang, Changli Lu, Li Yu, Ting Teo, Edwin Hang Tong Liu, Guangtong Liu, Zheng School of Electrical and Electronic Engineering School of Materials Science & Engineering School of Physical and Mathematical Sciences Centre for Programmable Materials Nanoelectronics Centre of Excellence Temasek Laboratories Monolayer Superconductor Chemical Vapour Deposition The discovery of monolayer superconductors bears consequences for both fundamental physics and device applications. Currently, the growth of superconducting monolayers can only occur under ultrahigh vacuum and on specific lattice-matched or dangling bond-free substrates, to minimize environment- and substrate-induced disorders/defects. Such severe growth requirements limit the exploration of novel two-dimensional superconductivity and related nanodevices. Here we demonstrate the experimental realization of superconductivity in a chemical vapour deposition grown monolayer material—NbSe2. Atomic-resolution scanning transmission electron microscope imaging reveals the atomic structure of the intrinsic point defects and grain boundaries in monolayer NbSe2, and confirms the low defect concentration in our high-quality film, which is the key to two-dimensional superconductivity. By using monolayer chemical vapour deposited graphene as a protective capping layer, thickness-dependent superconducting properties are observed in as-grown NbSe2 with a transition temperature increasing from 1.0 K in monolayer to 4.56 K in 10-layer. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2018-06-05T09:10:56Z 2019-12-06T17:26:18Z 2018-06-05T09:10:56Z 2019-12-06T17:26:18Z 2017 Journal Article Wang, H., Huang, X., Lin, J., Cui, J., Chen, Y., Zhu, C., et al. (2017). High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition. Nature Communications, 8(1), 394-. https://hdl.handle.net/10356/89473 http://hdl.handle.net/10220/44960 10.1038/s41467-017-00427-5 en Nature Communications © 2017 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/ 8 p. application/pdf |
| spellingShingle | Monolayer Superconductor Chemical Vapour Deposition Wang, Hong Huang, Xiangwei Lin, Junhao Cui, Jian Chen, Yu Zhu, Chao Liu, Fucai Zeng, Qingsheng Zhou, Jiadong Yu, Peng Wang, Xuewen He, Haiyong Tsang, Siu Hon Gao, Weibo Suenaga, Kazu Ma, Fengcai Yang, Changli Lu, Li Yu, Ting Teo, Edwin Hang Tong Liu, Guangtong Liu, Zheng High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition |
| title | High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition |
| title_full | High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition |
| title_fullStr | High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition |
| title_full_unstemmed | High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition |
| title_short | High-quality monolayer superconductor NbSe2 grown by chemical vapour deposition |
| title_sort | high quality monolayer superconductor nbse2 grown by chemical vapour deposition |
| topic | Monolayer Superconductor Chemical Vapour Deposition |
| url | https://hdl.handle.net/10356/89473 http://hdl.handle.net/10220/44960 |
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