Atomic tracking of thermally‐driven structural evolution in 2D crystals: Case of NbSe2
Abstract Advanced atomic tracking techniques play a critical role in characterizing structural evolution, elucidating fundamental mechanisms of exotic phenomena and tailoring delicate properties. Thermally driven structural modulation in 2D crystals, such as the charge density wave (CDW), often lead...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-02-01
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| Series: | InfoMat |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/inf2.12501 |
| _version_ | 1797295266702819328 |
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| author | Baofei Hou Teng Zhang Tingting Wang Hongyan Ji Huixia Yang Liangguang Jia Xu Han Jingsi Qiao Yu Zhang Liwei Liu Hong‐Jun Gao Yeliang Wang |
| author_facet | Baofei Hou Teng Zhang Tingting Wang Hongyan Ji Huixia Yang Liangguang Jia Xu Han Jingsi Qiao Yu Zhang Liwei Liu Hong‐Jun Gao Yeliang Wang |
| author_sort | Baofei Hou |
| collection | DOAJ |
| description | Abstract Advanced atomic tracking techniques play a critical role in characterizing structural evolution, elucidating fundamental mechanisms of exotic phenomena and tailoring delicate properties. Thermally driven structural modulation in 2D crystals, such as the charge density wave (CDW), often leads to intriguing quantum properties, making them a valuable platform for exploring fundamental physics and potential device applications. However, despite their significance, experimental studies addressing atomic tracking of thermally‐driven structural evolution in 2D crystals have been limited. Herein, we utilize high‐accuracy variable‐temperature atomic tracking measurements with scanning tunneling microscopy (STM) to directly observe a series of structural transitions in a model 2D crystal, namely NbSe2. With the atomic tracking technique, we confirm the existence of the universal thermally‐driven CDW transition hysteresis between the heating and cooling cycles. This transition hysteresis, characterized by a constant temperature offset, represents a new phenomenon of structural evolution. Our findings provide a feasible method to track CDW transitions at the atomic scale in 2D crystals, significantly contributing to a better understanding and the potential modulation of these materials' functions in nanodevices. |
| first_indexed | 2024-03-07T21:44:17Z |
| format | Article |
| id | doaj.art-38c2b1ecf2b141d3bf25af22004c54fa |
| institution | Directory Open Access Journal |
| issn | 2567-3165 |
| language | English |
| last_indexed | 2024-03-07T21:44:17Z |
| publishDate | 2024-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | InfoMat |
| spelling | doaj.art-38c2b1ecf2b141d3bf25af22004c54fa2024-02-26T00:48:22ZengWileyInfoMat2567-31652024-02-0162n/an/a10.1002/inf2.12501Atomic tracking of thermally‐driven structural evolution in 2D crystals: Case of NbSe2Baofei Hou0Teng Zhang1Tingting Wang2Hongyan Ji3Huixia Yang4Liangguang Jia5Xu Han6Jingsi Qiao7Yu Zhang8Liwei Liu9Hong‐Jun Gao10Yeliang Wang11School of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaInstitute of Physics Chinese Academy of Sciences Beijing the People's Republic of ChinaSchool of Integrated Circuits and Electronics & Yangtze Delta Region Academy Beijing Institute of Technology Beijing the People's Republic of ChinaAbstract Advanced atomic tracking techniques play a critical role in characterizing structural evolution, elucidating fundamental mechanisms of exotic phenomena and tailoring delicate properties. Thermally driven structural modulation in 2D crystals, such as the charge density wave (CDW), often leads to intriguing quantum properties, making them a valuable platform for exploring fundamental physics and potential device applications. However, despite their significance, experimental studies addressing atomic tracking of thermally‐driven structural evolution in 2D crystals have been limited. Herein, we utilize high‐accuracy variable‐temperature atomic tracking measurements with scanning tunneling microscopy (STM) to directly observe a series of structural transitions in a model 2D crystal, namely NbSe2. With the atomic tracking technique, we confirm the existence of the universal thermally‐driven CDW transition hysteresis between the heating and cooling cycles. This transition hysteresis, characterized by a constant temperature offset, represents a new phenomenon of structural evolution. Our findings provide a feasible method to track CDW transitions at the atomic scale in 2D crystals, significantly contributing to a better understanding and the potential modulation of these materials' functions in nanodevices.https://doi.org/10.1002/inf2.125012D crystalatomic tracking techniquestructural evolutiontemperature hysteresis |
| spellingShingle | Baofei Hou Teng Zhang Tingting Wang Hongyan Ji Huixia Yang Liangguang Jia Xu Han Jingsi Qiao Yu Zhang Liwei Liu Hong‐Jun Gao Yeliang Wang Atomic tracking of thermally‐driven structural evolution in 2D crystals: Case of NbSe2 InfoMat 2D crystal atomic tracking technique structural evolution temperature hysteresis |
| title | Atomic tracking of thermally‐driven structural evolution in 2D crystals: Case of NbSe2 |
| title_full | Atomic tracking of thermally‐driven structural evolution in 2D crystals: Case of NbSe2 |
| title_fullStr | Atomic tracking of thermally‐driven structural evolution in 2D crystals: Case of NbSe2 |
| title_full_unstemmed | Atomic tracking of thermally‐driven structural evolution in 2D crystals: Case of NbSe2 |
| title_short | Atomic tracking of thermally‐driven structural evolution in 2D crystals: Case of NbSe2 |
| title_sort | atomic tracking of thermally driven structural evolution in 2d crystals case of nbse2 |
| topic | 2D crystal atomic tracking technique structural evolution temperature hysteresis |
| url | https://doi.org/10.1002/inf2.12501 |
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