Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2
Abstract The chiral charge density wave is a many-body collective phenomenon in condensed matter that may play a role in unconventional superconductivity and topological physics. Two-dimensional chiral charge density waves provide the building blocks for the fabrication of various stacking structure...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-37927-6 |
| _version_ | 1827961185909080064 |
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| author | Yan Zhao Zhengwei Nie Hao Hong Xia Qiu Shiyi Han Yue Yu Mengxi Liu Xiaohui Qiu Kaihui Liu Sheng Meng Lianming Tong Jin Zhang |
| author_facet | Yan Zhao Zhengwei Nie Hao Hong Xia Qiu Shiyi Han Yue Yu Mengxi Liu Xiaohui Qiu Kaihui Liu Sheng Meng Lianming Tong Jin Zhang |
| author_sort | Yan Zhao |
| collection | DOAJ |
| description | Abstract The chiral charge density wave is a many-body collective phenomenon in condensed matter that may play a role in unconventional superconductivity and topological physics. Two-dimensional chiral charge density waves provide the building blocks for the fabrication of various stacking structures and chiral homostructures, in which physical properties such as chiral currents and the anomalous Hall effect may emerge. Here, we demonstrate the phase manipulation of two-dimensional chiral charge density waves and the design of in-plane chiral homostructures in 1T-TaS2. We use chiral Raman spectroscopy to directly monitor the chirality switching of the charge density wave—revealing a temperature-mediated reversible chirality switching. We find that interlayer stacking favours homochirality configurations, which is confirmed by first-principles calculations. By exploiting the interlayer chirality-locking effect, we realise in-plane chiral homostructures in 1T-TaS2. Our results provide a versatile way to manipulate chiral collective phases by interlayer coupling in layered van der Waals semiconductors. |
| first_indexed | 2024-04-09T16:22:58Z |
| format | Article |
| id | doaj.art-8426cae7075a416c9cbc4dcf9758a8f4 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-09T16:22:58Z |
| publishDate | 2023-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-8426cae7075a416c9cbc4dcf9758a8f42023-04-23T11:23:20ZengNature PortfolioNature Communications2041-17232023-04-011411910.1038/s41467-023-37927-6Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2Yan Zhao0Zhengwei Nie1Hao Hong2Xia Qiu3Shiyi Han4Yue Yu5Mengxi Liu6Xiaohui Qiu7Kaihui Liu8Sheng Meng9Lianming Tong10Jin Zhang11College of Chemistry and Molecular Engineering, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, Peking UniversityBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesState Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter, School of Physics, Peking UniversityAcademy for Advanced Interdisciplinary Studies, Peking UniversityCollege of Chemistry and Molecular Engineering, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, Peking UniversityCollege of Chemistry and Molecular Engineering, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, Peking UniversityUniversity of Chinese Academy of SciencesUniversity of Chinese Academy of SciencesState Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter, School of Physics, Peking UniversityBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesCollege of Chemistry and Molecular Engineering, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, Peking UniversityCollege of Chemistry and Molecular Engineering, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, Peking UniversityAbstract The chiral charge density wave is a many-body collective phenomenon in condensed matter that may play a role in unconventional superconductivity and topological physics. Two-dimensional chiral charge density waves provide the building blocks for the fabrication of various stacking structures and chiral homostructures, in which physical properties such as chiral currents and the anomalous Hall effect may emerge. Here, we demonstrate the phase manipulation of two-dimensional chiral charge density waves and the design of in-plane chiral homostructures in 1T-TaS2. We use chiral Raman spectroscopy to directly monitor the chirality switching of the charge density wave—revealing a temperature-mediated reversible chirality switching. We find that interlayer stacking favours homochirality configurations, which is confirmed by first-principles calculations. By exploiting the interlayer chirality-locking effect, we realise in-plane chiral homostructures in 1T-TaS2. Our results provide a versatile way to manipulate chiral collective phases by interlayer coupling in layered van der Waals semiconductors.https://doi.org/10.1038/s41467-023-37927-6 |
| spellingShingle | Yan Zhao Zhengwei Nie Hao Hong Xia Qiu Shiyi Han Yue Yu Mengxi Liu Xiaohui Qiu Kaihui Liu Sheng Meng Lianming Tong Jin Zhang Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2 Nature Communications |
| title | Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2 |
| title_full | Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2 |
| title_fullStr | Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2 |
| title_full_unstemmed | Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2 |
| title_short | Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2 |
| title_sort | spectroscopic visualization and phase manipulation of chiral charge density waves in 1t tas2 |
| url | https://doi.org/10.1038/s41467-023-37927-6 |
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